1.5T PRL Motorsports 1.5T PNP Flex Fuel Kit

OP
OP
PRL Motorsports

PRL Motorsports

Premium Performance Products
Elite Sponsor
Joined
Jan 26, 2017
Threads
113
Messages
1,575
Reaction score
4,325
Location
Export, PA
Website
prlmotorsports.com
Vehicle(s)
2017 Civic Si, 2016 Civic EX-T, 2018 Type R
Country flag
Can't wait to get mine! I ordered on 01/10. Any ETA?
We are shipping more batches out this week and also having to ship out to some customers new corrected wire harnesses as well, we do apologize for any delays you may be experiencing on our flex fuel kit. We are planning getting the rest of these out this week and next :)
Sponsored

 

BobbyA

Senior Member
First Name
Bobby
Joined
Nov 19, 2018
Threads
14
Messages
77
Reaction score
59
Location
Fredericksburg, VA
Vehicle(s)
2018 Civic Si Coupe (PRL Stage 1, Hondata FlashPro, PRL Flex Fuel e85, HardRace Rear Mount, Megan Racing Strut Bar) Wish List: PRL Catted Downpipe, Eibach Pro Springs Kit, Seibon Carbon Fiber Hood & Trunk.
Country flag
After installation these are the items that must be selected for the flex fuel system to operate properly. This should clear up any questions we've been having with first time users or those unfamiliar with setting these parameters.

Flex%20Fuel%20KTuner%201_zpsri5cobrh.jpg


Flex%20Fuel%20KTuner%202_zps5lohfdz1.jpg
Is this a K-tuner screen? Is there a comparable screen shot for Hondata (I'm a Hondata user), or any changes needed there? I was planning to use their stock calibration which I recall is the +6PSI Ethanol Tune. Thanks.
 

Kane666

Senior Member
First Name
Jason
Joined
Jul 18, 2018
Threads
75
Messages
992
Reaction score
132
Location
Pennsylvania
Vehicle(s)
2018 Civic Sport Touring
Vehicle Showcase
1
Country flag
can this be installed and ktuner set up for ethanol but still run 91 or 93? flex is a pain to find in my area and usually not close.
 

KTuner

Elite Sponsor
First Name
J.R.
Joined
Jul 10, 2017
Threads
30
Messages
2,792
Reaction score
3,423
Location
Chandler, Arizona
Website
www.KTuner.com
Vehicle(s)
2017 Si
Country flag
The feature detects how much ethanol is in your system and adjusts based on that. This means if there is no ethanol in the system it will adjust for that, too.
 
OP
OP
PRL Motorsports

PRL Motorsports

Premium Performance Products
Elite Sponsor
Joined
Jan 26, 2017
Threads
113
Messages
1,575
Reaction score
4,325
Location
Export, PA
Website
prlmotorsports.com
Vehicle(s)
2017 Civic Si, 2016 Civic EX-T, 2018 Type R
Country flag
PRL Motorsports Flex Fuel Kit Installation on a 2016+ Honda Civic


Tools Needed:

13/16” Wrench 12mm Socket Wire Cutters

5/8” Wrench 10mm Socket Ratchet with Extension

9/16” Wrench 8mm Socket Small Flathead Screwdriver


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit Tools%20Needed_zpszbxaknn5



**This kit is designed to be a direct plug n’ play kit, but keep in mind that an engine management system with Flex Fuel capabilities like KTuner or Hondata is required, along with a Flex Fuel Tune.


Remove factory fuel hose bracket 10mm bolts

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 1%20Remove%20Bolts%20From%20Stock%20Bracket_zpsxhxa7dfs


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 2%20Remove%20bolts%20from%20stock%20bracket_zpskzgrlfqv


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 3%20Bolts%20Removed%20bracket%20off_zpsfu4l7fl



Remove the white plastic retainer covering the factory fuel lines. There is one located on the top line near the previously removed bracket and bottom line near the valve cover.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 4%20Remove%20White%20Plastic%20Holder_zpsuj7khr2s


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 5%20Removing%20white%20Plastic%20Line%20Holder_zpsoqoumljs


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 6%20White%20Holder%20off%20line_zpsognttwea


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 7%20Remove%20white%20holder%20on%20other%20end%20of%20fuel%20line_zpshhpoyk5a


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 8%20Remove%20white%20holder%20on%20engine%20side%20of%20line_zpst5prerzl




Remove the stock fuel line by releasing the clamp with a small flat head screwdriver.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 9%20Remove%20clamp%20holding%20on%20lower%20section%20of%20line_zpsgixnfsb7


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 10%20Remove%20clamp%20off%20lower%20section%20of%20fuel%20Line_zpsqljarfnt


Please Note: that a small amount of fuel will come out of the connection when removing. Use a shop towel to prohibit fuel from going onto other components.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 11%20Lower%20fuel%20line%20connection%20removed_zpsrr6ruca


The completely removed fuel line:

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 12%20OEM%20Fuel%20line%20completely%20removed_zpskmaaq6z5


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 13%20OEM%20Fuel%20Line%20off%20car%20layed%20out_zps5hez7jf5



Remove the factory fuel line clip

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 14%20Removing%20stock%20firewall%20bracket_zps8pkerqqq


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 15%20Removing%20fuel%20line%20clip_zpsrnhbcqam



Remove firewall bracket 10mm bolts

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 16%20Remove%20firewall%20bracket%20bolts_zps1jwdzyya



Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 17%20Firewall%20bolts%20removed_zpsecgxssq



Remove the green clip on the upper and lower hard fuel lines

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 24%20Remove%20Green%20line%20clip%20on%20stock%20line_zpsop2vhgse


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 25%20Remove%20green%20line%20clip%20on%20stock%20line%20LOWER_zpsurz9hyvv


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 18%20Fuel%20line%20assembly%20completely%20removed%20with%20firewall%20bracket_zpsmjgrkxxb


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 19%20Fuel%20Line%20asssembly%20off%20car%20layed%20out_zpsdp2cji9b



This is how the PRL Motorsports Flex Fuel Kit should come from the box, with 6" zipties included in the box below the foam

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 20%20PRL%20FF%20Kit%20Pulled%20out%20of%20Box_zpsxeferdpi




Remove the billet EFI adapter fitting from the GM Ethanol Content Sensor

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 21%20disassemble%20PRL%20Fitting_zpswopkzt3w


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 23%20PRL%20Kit%20without%20fitting%20on_zpsdiiwrkao



This is the fitting disassembled in the correct orientation

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 22%20PRL%20Fitting%20Disassembled%20in%20correct%20orientation_zpswfc2wcmh




Remove (with care) the OEM Robber grommets from the stock bracket, as these will be used in the PRL Bracket.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 26%20Remove%20rubber%20grommetts%20from%20factory%20firewall%20bracket_zps9p3dmznt



Separate the rubber from the metal inserts
Insert the rubber sections in the PRL bracket first and then insert the metal backing pieces

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 27%20Separate%20stock%20rubber%20grommetts_zps1rmrm75b


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 29%20PRL%20Firewall%20bracket%20grommets%20installed%20FRONT_zpsvxrmthgr



Use the factory bolts to secure the PRL Bracket assembly to the firewall

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 31%20PRL%20Kit%20bolted%20to%20firewall_zps8s3fdcex



Before putting the billet EFI adapter fitting on, be aware of the two sizes on each side of the fitting, one is for the OEM line and the other is for the GM Ethanol Content Sensor provided in the PRL kit.
Each of these specialty fittings will be placed onto the first barb on each line

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 22%20PRL%20Fitting%20Disassembled%20in%20correct%20orientation_zpswfc2wcmh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 32%20PRL%20Fitting%20layed%20out%20with%20different%20size%20fittings_zpsmrqeqhmr


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 33%20PRL%20Fitting%20pieces_zps93ezsuaz


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 34%20PRL%20Fitting%20ends%20on%20fuel%20lines_zpsdz4bufrw




Inside view of the billet EFI adapter fitting

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 36%20%20PRL%20Fitting%20inside%20Oring%20L%20side_zpswkcusg7h


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 35%20PRL%20Fitting%20inside%20oring%20P%20side_zpslqb5kr3x



Either side can be installed first, but we suggest the PRL Flex Fuel side to be installed first for ease of tightening on the OEM Line side.

The fitting assembly should look like this when everything is tightened down.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 38%20PRL%20Fitting%20Installed%20on%20kit_zpsnfpct8eo



Connect the lower fuel line to the OEM line near the valve cover. Ensure that it is completely pushed onto the line and secure on the barb on the line and the clamp is secured on the line

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 39%20Lower%20Fuel%20Line%20Connection_zpsd3zhxhpi


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 42%20Lower%20Line%20Ensure%20proper%20barb%20fitment_zpsnrkrxi4m


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 40%20PRL%20Line%20overview_zpsry9ooijh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 41%20PRL%20Fuel%20Line%20Overview%202_zpsmkm1urki



Remove the plastic piece to run both of the lines from the wiring harness under

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 43%20Remove%20plastic%20bracket%20to%20run%20initial%20line%20under_zpsn3iecxza



Ziptie the wiring harness lines to the stock convoluted tubing

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 44%20How%20to%20run%20first%20wire%20line%20off%20kit_zpswu7isycy


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 45%20First%20ziptie%20connection_zps3wwngdkb



If you want a totally tucked and clean look, undo the orange clamp holding the gray line in and put both wiring harness lines in the orange clamp.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 47%20Wire%20line%20split%20two%20lines_zpsfuhbhogc


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 46%20wire%20line%20split%20%20how%20to%20run%20the%20two%20lines_zpshy14y9nw



Ziptie everything under the OEM lines to keep the factory look

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 48%20%20two%20zipties%20line%20with%20gray_zps7pvu9bod


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 49%20Run%20line%20under%20orange%20piece%20for%20clean%20look_zpsypwpr8x



Route the wiring harness lines behind the factory coolant lines

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 50%20Where%20to%20run%20line%20behind%20coolant%20Lines_zpsf7eslbjm



Remove the evap tube line and clamp.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 51%20Remove%20Evap%20Hose_zpsqz1whynf



Undo the factory O2 sensor 4-pin clip

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 52%20Disconnect%20OEM%20Plug_zpshquyvbcy



Connect the PRL harness plug to the factory connection.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 53%20Current%201%20plug%20installed%20orientation_zpsj4rwlw2b



Undo the bolt on the block and use this bolt for the ground connection.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 54%20Where%20to%20Bolt%20ground%20to_zps6jmzskdw



This is the final configuration for this end of the harness.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 55%20Plug%20Orientation_zpsaxxkpjpr



We ziptied the connections for a more secure fit

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 56%20Plug%20orientation%20with%20Ziptie_zpsakw6erdh



The final connection can be accessed two ways. From the top, or by jacking up the car and removing the plastic shielding to access the ECT2 connection. We chose to show how to do it without jacking up the car. This way requires that the plastic shroud to be removed with the plastic clips (Holes shown already removed clips)

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 57%20Remove%20Plastic%20Shroud_zpsi28xmbbs


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 58%20Remove%20two%20bolts%20for%20metal%20front%20cross_zpsqdaoflfn


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 59%20Bolt%20removed%20from%20metal%20cross_zpskjlg4v18


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 60%20Remove%20bolt%20on%20metal%20cross_zpsrcq2xnox



Remove the Rubber line from the holder on the metal shroud.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 61%20Remove%20Line%20from%20metal%20piece_zpstvtsgmoh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 62%20Line%20removed%20from%20metal%20piece_zpsmhqqi4ho


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 63%20Remove%20bolt%20from%20Metal%20piece_zpsz6abkedi



Pry the small rubber nipple out of the metal shroud to release it.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 64%20remove%20rubber%20piece%20from%20metal%20piece_zpstaktoey1


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 65%20SMall%20rubber%20piece%20removed%20from%20metal%20piece_zpsjimzvk11



Remove the 10mm bolts behind the metal shroud

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 66%20Bolt%20to%20remove%20on%20backside%20of%20metal%20piece_zpskg4qoxx


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 67%20Pass%20side%20bolt%20remove%20on%20backside%20of%20metal%20piece_zpsfcagyior



Pull the tabs up to release the metal shroud

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 68%20Lift%20up%20on%20tabs%20to%20remove%20metal%20piece_zpsk9xuzfyk


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 69%20Lif%20tup%20on%20other%20tab%20to%20remove%20metal%20piece_zpsmazsz1rd



Remove the metal hard-line from the white holder on the back side of the metal shroud (passenger side)

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 70%20Remove%20metal%20line%20from%20white%20plastic%20bracket_zps4jrclnul



Lift and pull the metal shroud towards the valve cover and release it from the tabs lifted up in the previous steps

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 71%20Remove%20metal%20shroud_zpsoemcdxyd



Ensure the plastic rectangular piece on the drivers side is removed before pulling the metal shroud completely out.


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 72%20remove%20rubber%20piece%20from%20metal%20shroud_zps2fohpyu3



Remove the secondary holder underneath the shroud on the line removed from the holder earlier.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 73%20Remove%20coolant%20line%20from%20metal%20shroud_zpsmp5yvy0z



Protect your valve cover and set the metal shroud on top.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 74%20Remove%20metal%20shroud_zpsm9kam6em



Reach down to release the 1-wire ECT2 connection from the rad

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 75%20Coolant%20plug%20removed_zpsapkcpdmt


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 76%20Coolant%20Pluig%20Removed_zpsryx9wfjf



The single prong ECT2 clip that will be plugging into the rad

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 77%20COolant%20Plug%20End_zpsdfkcpy0w



Run the line over the hot side charge pipe silicone and into the rad where you removed the factory plug from

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 79%20Final%20coolant%20plug%20line%20and%20where%20to%20insert_zpscyw1kam


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 80%20Final%20COolant%20line%20plug%20insert_zpskuh2v1wd



The factory clip can hang free or we suggest sealing it to protect against elements.

Feel free to cut the excess tabs of the zipties off towards the end of the install for a clean look.

Please be sure to have P2185 (Secondary ECT), P0128, and P0138/P0139 (O2 slow response) codes disabled on your KTuner or Hondata software. Our kit pulls power from the secondary o2 sensor and utilizes the ECT2 output. Enable flex fuel tables which can often be found in the advanced features section.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit Flex%20Fuel%20KTuner%201_zpsri5cobrh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit Flex%20Fuel%20KTuner%202_zps5lohfdz1
 


OP
OP
PRL Motorsports

PRL Motorsports

Premium Performance Products
Elite Sponsor
Joined
Jan 26, 2017
Threads
113
Messages
1,575
Reaction score
4,325
Location
Export, PA
Website
prlmotorsports.com
Vehicle(s)
2017 Civic Si, 2016 Civic EX-T, 2018 Type R
Country flag
PRL Motorsports Flex Fuel Kit Installation on a 2016+ Honda Civic


Tools Needed:

13/16” Wrench 12mm Socket Wire Cutters

5/8” Wrench 10mm Socket Ratchet with Extension

9/16” Wrench 8mm Socket Small Flathead Screwdriver


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit Tools%20Needed_zpszbxaknn5



**This kit is designed to be a direct plug n’ play kit, but keep in mind that an engine management system with Flex Fuel capabilities like KTuner or Hondata is required, along with a Flex Fuel Tune.

Begin by inspecting the components of the PRL Flex Fuel Kit, if you have any questions, concerns, or out of place items please contact PRL Motorsports and do not proceed with installation.

Make sure the engine is off and cool. We recommend discharging the existing fuel pressure from the system. Refer to the factory service manual for OEM methods of doing such. A method we use to disable the fuel pump is pulling the Slot 8 fuse in the interior fuse box (consult the underside lid for the correct fuse location), this is a 15amp fuse for reference, then attempt to start the vehicle. The vehicle will most likely run for a brief moment then stall. By doing this the fuel pressure is reduced, be cautious some pressure may still remain in the system.


Remove factory fuel hose bracket 10mm bolts

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 1%20Remove%20Bolts%20From%20Stock%20Bracket_zpsxhxa7dfs


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 2%20Remove%20bolts%20from%20stock%20bracket_zpskzgrlfqv


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 3%20Bolts%20Removed%20bracket%20off_zpsfu4l7fl



Remove the white plastic retainer covering the factory fuel lines. There is one located on the top line near the previously removed bracket and bottom line near the valve cover.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 4%20Remove%20White%20Plastic%20Holder_zpsuj7khr2s


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 5%20Removing%20white%20Plastic%20Line%20Holder_zpsoqoumljs


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 6%20White%20Holder%20off%20line_zpsognttwea


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 7%20Remove%20white%20holder%20on%20other%20end%20of%20fuel%20line_zpshhpoyk5a


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 8%20Remove%20white%20holder%20on%20engine%20side%20of%20line_zpst5prerzl




Remove the stock fuel line by releasing the clamp with a small flat head screwdriver.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 9%20Remove%20clamp%20holding%20on%20lower%20section%20of%20line_zpsgixnfsb7


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 10%20Remove%20clamp%20off%20lower%20section%20of%20fuel%20Line_zpsqljarfnt


Please Note: that a small amount of fuel will come out of the connection when removing. Use a shop towel to prohibit fuel from going onto other components.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 11%20Lower%20fuel%20line%20connection%20removed_zpsrr6ruca


The completely removed fuel line:

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 12%20OEM%20Fuel%20line%20completely%20removed_zpskmaaq6z5


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 13%20OEM%20Fuel%20Line%20off%20car%20layed%20out_zps5hez7jf5



Remove the factory fuel line clip

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 14%20Removing%20stock%20firewall%20bracket_zps8pkerqqq


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 15%20Removing%20fuel%20line%20clip_zpsrnhbcqam



Remove firewall bracket 10mm bolts

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 16%20Remove%20firewall%20bracket%20bolts_zps1jwdzyya



Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 17%20Firewall%20bolts%20removed_zpsecgxssq



Remove the green clip on the upper and lower hard fuel lines

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 24%20Remove%20Green%20line%20clip%20on%20stock%20line_zpsop2vhgse


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 25%20Remove%20green%20line%20clip%20on%20stock%20line%20LOWER_zpsurz9hyvv


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 18%20Fuel%20line%20assembly%20completely%20removed%20with%20firewall%20bracket_zpsmjgrkxxb


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 19%20Fuel%20Line%20asssembly%20off%20car%20layed%20out_zpsdp2cji9b



This is how the PRL Motorsports Flex Fuel Kit should come from the box, with 6" zipties included in the box below the foam

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 20%20PRL%20FF%20Kit%20Pulled%20out%20of%20Box_zpsxeferdpi




Remove the billet EFI adapter fitting from the GM Ethanol Content Sensor

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 21%20disassemble%20PRL%20Fitting_zpswopkzt3w


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 23%20PRL%20Kit%20without%20fitting%20on_zpsdiiwrkao



This is the fitting disassembled in the correct orientation

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 22%20PRL%20Fitting%20Disassembled%20in%20correct%20orientation_zpswfc2wcmh




Remove (with care) the OEM Robber grommets from the stock bracket, as these will be used in the PRL Bracket.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 26%20Remove%20rubber%20grommetts%20from%20factory%20firewall%20bracket_zps9p3dmznt



Separate the rubber from the metal inserts
Insert the rubber sections in the PRL bracket first and then insert the metal backing pieces

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 27%20Separate%20stock%20rubber%20grommetts_zps1rmrm75b


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 29%20PRL%20Firewall%20bracket%20grommets%20installed%20FRONT_zpsvxrmthgr



Use the factory bolts to secure the PRL Bracket assembly to the firewall

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 31%20PRL%20Kit%20bolted%20to%20firewall_zps8s3fdcex



Before putting the billet EFI adapter fitting on, be aware of the two sizes on each side of the fitting, one is for the OEM line and the other is for the GM Ethanol Content Sensor provided in the PRL kit.
Each of these specialty fittings will be placed onto the first barb on each line

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 22%20PRL%20Fitting%20Disassembled%20in%20correct%20orientation_zpswfc2wcmh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 32%20PRL%20Fitting%20layed%20out%20with%20different%20size%20fittings_zpsmrqeqhmr


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 33%20PRL%20Fitting%20pieces_zps93ezsuaz


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 34%20PRL%20Fitting%20ends%20on%20fuel%20lines_zpsdz4bufrw




Inside view of the billet EFI adapter fitting

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 36%20%20PRL%20Fitting%20inside%20Oring%20L%20side_zpswkcusg7h


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 35%20PRL%20Fitting%20inside%20oring%20P%20side_zpslqb5kr3x



Either side can be installed first, but we suggest the PRL Flex Fuel side to be installed first for ease of tightening on the OEM Line side.

The fitting assembly should look like this when everything is tightened down.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 38%20PRL%20Fitting%20Installed%20on%20kit_zpsnfpct8eo



Connect the lower fuel line to the OEM line near the valve cover. Ensure that it is completely pushed onto the line and secure on the barb on the line and the clamp is secured on the line

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 39%20Lower%20Fuel%20Line%20Connection_zpsd3zhxhpi


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 42%20Lower%20Line%20Ensure%20proper%20barb%20fitment_zpsnrkrxi4m


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 40%20PRL%20Line%20overview_zpsry9ooijh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 41%20PRL%20Fuel%20Line%20Overview%202_zpsmkm1urki



Remove the plastic piece to run both of the lines from the wiring harness under

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 43%20Remove%20plastic%20bracket%20to%20run%20initial%20line%20under_zpsn3iecxza



Ziptie the wiring harness lines to the stock convoluted tubing

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 44%20How%20to%20run%20first%20wire%20line%20off%20kit_zpswu7isycy


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 45%20First%20ziptie%20connection_zps3wwngdkb



If you want a totally tucked and clean look, undo the orange clamp holding the gray line in and put both wiring harness lines in the orange clamp.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 47%20Wire%20line%20split%20two%20lines_zpsfuhbhogc


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 46%20wire%20line%20split%20%20how%20to%20run%20the%20two%20lines_zpshy14y9nw



Ziptie everything under the OEM lines to keep the factory look

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 48%20%20two%20zipties%20line%20with%20gray_zps7pvu9bod


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 49%20Run%20line%20under%20orange%20piece%20for%20clean%20look_zpsypwpr8x



Route the wiring harness lines behind the factory coolant lines

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 50%20Where%20to%20run%20line%20behind%20coolant%20Lines_zpsf7eslbjm



Remove the evap tube line and clamp.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 51%20Remove%20Evap%20Hose_zpsqz1whynf



Undo the factory O2 sensor 4-pin clip

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 52%20Disconnect%20OEM%20Plug_zpshquyvbcy



Connect the PRL harness plug to the factory connection.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 53%20Current%201%20plug%20installed%20orientation_zpsj4rwlw2b



Undo the bolt on the block and use this bolt for the ground connection.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 54%20Where%20to%20Bolt%20ground%20to_zps6jmzskdw



This is the final configuration for this end of the harness.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 55%20Plug%20Orientation_zpsaxxkpjpr



We ziptied the connections for a more secure fit

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 56%20Plug%20orientation%20with%20Ziptie_zpsakw6erdh



The final connection can be accessed two ways. From the top, or by jacking up the car and removing the plastic shielding to access the ECT2 connection. We chose to show how to do it without jacking up the car. This way requires that the plastic shroud to be removed with the plastic clips (Holes shown already removed clips)

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 57%20Remove%20Plastic%20Shroud_zpsi28xmbbs


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 58%20Remove%20two%20bolts%20for%20metal%20front%20cross_zpsqdaoflfn


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 59%20Bolt%20removed%20from%20metal%20cross_zpskjlg4v18


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 60%20Remove%20bolt%20on%20metal%20cross_zpsrcq2xnox



Remove the Rubber line from the holder on the metal shroud.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 61%20Remove%20Line%20from%20metal%20piece_zpstvtsgmoh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 62%20Line%20removed%20from%20metal%20piece_zpsmhqqi4ho


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 63%20Remove%20bolt%20from%20Metal%20piece_zpsz6abkedi



Pry the small rubber nipple out of the metal shroud to release it.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 64%20remove%20rubber%20piece%20from%20metal%20piece_zpstaktoey1


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 65%20SMall%20rubber%20piece%20removed%20from%20metal%20piece_zpsjimzvk11



Remove the 10mm bolts behind the metal shroud

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 66%20Bolt%20to%20remove%20on%20backside%20of%20metal%20piece_zpskg4qoxx


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 67%20Pass%20side%20bolt%20remove%20on%20backside%20of%20metal%20piece_zpsfcagyior



Pull the tabs up to release the metal shroud

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 68%20Lift%20up%20on%20tabs%20to%20remove%20metal%20piece_zpsk9xuzfyk


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 69%20Lif%20tup%20on%20other%20tab%20to%20remove%20metal%20piece_zpsmazsz1rd



Remove the metal hard-line from the white holder on the back side of the metal shroud (passenger side)

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 70%20Remove%20metal%20line%20from%20white%20plastic%20bracket_zps4jrclnul



Lift and pull the metal shroud towards the valve cover and release it from the tabs lifted up in the previous steps

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 71%20Remove%20metal%20shroud_zpsoemcdxyd



Ensure the plastic rectangular piece on the drivers side is removed before pulling the metal shroud completely out.


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 72%20remove%20rubber%20piece%20from%20metal%20shroud_zps2fohpyu3



Remove the secondary holder underneath the shroud on the line removed from the holder earlier.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 73%20Remove%20coolant%20line%20from%20metal%20shroud_zpsmp5yvy0z



Protect your valve cover and set the metal shroud on top.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 74%20Remove%20metal%20shroud_zpsm9kam6em



Reach down to release the 1-wire ECT2 connection from the rad

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 75%20Coolant%20plug%20removed_zpsapkcpdmt


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 76%20Coolant%20Pluig%20Removed_zpsryx9wfjf



The single prong ECT2 clip that will be plugging into the rad

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 77%20COolant%20Plug%20End_zpsdfkcpy0w



Run the line over the hot side charge pipe silicone and into the rad where you removed the factory plug from

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 79%20Final%20coolant%20plug%20line%20and%20where%20to%20insert_zpscyw1kam


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit 80%20Final%20COolant%20line%20plug%20insert_zpskuh2v1wd



The factory clip can hang free or we suggest sealing it to protect against elements.

Feel free to cut the excess tabs of the zipties off towards the end of the install for a clean look.

Please be sure to have P2185 (Secondary ECT), P0128, and P0138/P0139 (O2 slow response) codes disabled on your KTuner or Hondata software. Our kit pulls power from the secondary o2 sensor and utilizes the ECT2 output. Enable flex fuel tables which can often be found in the advanced features section.

Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit Flex%20Fuel%20KTuner%201_zpsri5cobrh


Honda Civic 10th gen PRL Motorsports 1.5T PNP Flex Fuel Kit Flex%20Fuel%20KTuner%202_zps5lohfdz1
 
Last edited:

joshhjackson2112

Senior Member
First Name
Josh
Joined
Jul 3, 2018
Threads
12
Messages
713
Reaction score
463
Location
Raleigh, North Carolina
Vehicle(s)
18' SI
Country flag
This is great. As soon as I get my new clutch installed this year I will absolutely be picking this up. I love the detailed install post.
I have a question that may have already been covered. Is there any damage that the extra ethanol will do to my car over time? Don't want to sound like a noob, just wondering what type of preventative maintenance I can do if there is a possibility of any kind of corrosion or build up from running E85 regularly.
 

ddood

Senior Member
Joined
Feb 17, 2017
Threads
6
Messages
272
Reaction score
143
Location
Australia
Vehicle(s)
Honda Civic 2016 VTI-LX
Country flag
@PRL Motorsports Is there any need to disconnect the fuel pump and run the car until the engine cuts to purge the fuel system before starting the install?
 

Averia

Member
Joined
Apr 12, 2019
Threads
4
Messages
44
Reaction score
11
Location
Arco, ID
Vehicle(s)
2018 Civic Si Sedan
Country flag
Looks like to keep a Mishimoto can you would have to replace the firewall bolts with studs and use female bosses to offset the the can from its current mounting position using the existing bolts. Is there a place that has metric bosses?
 


OceansX

Senior Member
Joined
Jun 16, 2018
Threads
17
Messages
250
Reaction score
76
Location
Brampton
Vehicle(s)
2017 civic hatchback sport touring
Country flag
Can someone explain to me what a flex fuel kit actually does/used for?
 

AREA

Senior Member
First Name
Chris
Joined
Sep 5, 2018
Threads
3
Messages
365
Reaction score
330
Location
Houston, TX
Vehicle(s)
18 Civic SI coupe
Vehicle Showcase
1
Country flag
Can someone explain to me what a flex fuel kit actually does/used for?
It integrates an ethanol sensor into your fuel lines and allows the ecu to also sense the ethanol amount which can allow more aggressive tuning options etc with the proper blend. You are not required to run ethanol due to the kit just gives you a way to measure the percentage in the tank. It is not instant horsepower without ethanol and an ethanol based tune like TSP stage 2.
 

OceansX

Senior Member
Joined
Jun 16, 2018
Threads
17
Messages
250
Reaction score
76
Location
Brampton
Vehicle(s)
2017 civic hatchback sport touring
Country flag
It integrates an ethanol sensor into your fuel lines and allows the ecu to also sense the ethanol amount which can allow more aggressive tuning options etc with the proper blend. You are not required to run ethanol due to the kit just gives you a way to measure the percentage in the tank. It is not instant horsepower without ethanol and an ethanol based tune like TSP stage 2.
Ah ok, I guess it doesn't make sense for me then, there's no biofuel stations around me in Canada
Sponsored

 


 


Top