Featured Tuned Civic X Reliability / Experience Survey - Now With Stats

  1. Doublestack00

    Doublestack00 Senior Member

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    Occupation:
    IT
    Location:
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    Car(s):
    2018 Si Sedan
    Vehicle: 2018 Civic Si

    Total tuned time: 20 months

    Total tuned mileage: 18,000

    Tuning device(s) used: Ktuner 1.2

    Tunes used: Vit Si Stage 1

    Fuel used: 93 octane

    Additional engine mods: PRL Cobra CAI, AFE Catted downpipe

    Problems/issues: None

    Driving style: Slightly speedy with aggressive bursts from time to time.

    Tuning experience notes: Car and tune has been super solid with out any issues.
     
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  2. Honda_RacerX

    Honda_RacerX Senior Member

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    From your observations with logs, does the mishimoto intake throw off the fuel trims on the completely factory tune?
     
  3. KMui

    KMui Member

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    Location:
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    First Name:
    Kevin
    Car(s):
    2016 Honda Civic EX-T CVT
    Vehicle: 2016 Civic EX-T sedan

    Total tuned time: 18 months

    Total tuned mileage: 10,000+ miles

    Tuning device(s) used: Hondata Race

    Tunes used: Hondata +6

    Fuel used: Shell 93

    Additional engine mods: Injen SRI

    Problems/issues: Blown transmission after pushing too hard on 3.4.4 firmware from Hondata. Tune consisted of base +6, Increased throttle, turbo spooling, and traction control mods. When I first uploaded this tune, i had a “Emissions System Problem”. Thought it might go away after a few days but was still there after a week. One night after some spirited driving, I parked my car and suddenly the transmission was having severe issues connecting power from the engine, car was basically in limp mode. Was not able to get the car to move at all the next day. Luckily, my Honda dealer hooked me up and honored my warranty and replaced the transmission with no charge. Now currently running the previous +6 tune now with no traction control mods since I think this new tune w/ traction control (after the 3.4.4 firmware) is causing the Emissions Systems Problem code.

    Driving style: Iron Foot, but now more conservative after the blown tranny issue.

    Tuning experience notes: Only used base tunes and mods that Hondata offered through the UI.

    @gtman may want your feedback here
     
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  4. OP
    OP
    gtman

    gtman Senior Member

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    2017 Cosmic Blue Civic EX-L
    #304 gtman, Nov 24, 2019
    Last edited: Nov 24, 2019
    The only emission related issue I know of with the KTuner/Hondata traction control systems is that the timing retard they employ can eventually fry catalytic converters (if it kicks in too often).

    I would think that transmission failure and the emission error may not have been related. What did the dealer say?
     
  5. Firstsi

    Firstsi New Member

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    Location:
    California
    First Name:
    Rogelio
    Car(s):
    Civic x SI, and 350z
    Vehicle: 2019 Civic Si coupe
    Total tuned time: 1 month

    Total tuned mileage: 500miles


    Tuning device(s) used: currently using KTuner V2

    Tunes used: Started with ktuner 19.5/21.5 CURRENTLY using MAPerformance Stage1Tune
    Fuel used: 91Octane
    Additional engine mods: PRL Cobra CAI. Muffler delete

    Problems/issues: not sure if it is a problem but reached k.count of .9 in 6th gear at WOT but dropped afterwards

    Driving style: speedy with aggressive bursts. WOT 95%

    Tuning experience notes: None. Flashed twice

    CDC0AECD-2457-48BC-BE2C-F5DE9C86109E.png
     
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  6. OP
    OP
    gtman

    gtman Senior Member

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    2017 Cosmic Blue Civic EX-L
    #306 gtman, Nov 25, 2019
    Last edited: Dec 4, 2019 at 8:29 AM
    A few thoughts.

    1. WOT 95% of the time? On the street?

    2. As far as the high K. Control, the fact it dropped quickly is good.

    3. WOT in overdrive gears is generally a bad idea.
     
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  7. bdsport

    bdsport Senior Member

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    Brian
    Car(s):
    2018 Honda Civic Sport Hatch CVT
    #307 bdsport, Nov 25, 2019
    Last edited: Nov 25, 2019
    UPDATE: problems now! Nothing crazy but about 800 miles after posting this I am currently getting an intermittent U0155 and associated codes. Dashboard gauges disconnecting with sensors it seems after some digging around. Only happens with KTUNER v2 plugged in and read somewhere that a similar code popped up with a bad OBD2 wire for the v2. Ill swap it out and update if it fixes. Vehicle operates fine and I can still see revs and speedometer

    [​IMG]

    dash1.jpg
     
  8. PowerPerLiter

    PowerPerLiter Specific Output

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    No they do a good job staying within range when not flashed. I was within 2-3 percent during the brief time when I was still using the stock flash with the mishimoto intake only. Once flashed it was 7- ish percent negative most of the time until adjusted. Then 1-2% at most +/- on my calibration.
     
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  9. OP
    OP
    gtman

    gtman Senior Member

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    2017 Cosmic Blue Civic EX-L
    Just a reminder to all CivicX members who are tuned (or previously were) to post up your tuning surveys. Thanks to those who have already done so.
    --------------------

    CURRENT SURVEY STATS

    Total surveys taken: 158
    Total tuned miles driven: 2,375,000 (approx.)
    Tuned cars with major failures: 5
    Percentage of tuned cars running reliably: 96.8%
    Transmission type: CVT (51); Manual (107)

    Custom tuned cars: 33
    Hondata used for tuning: 41
    KTuner used for tuning: 128
    JB4 used for tuning: 1
    -------------------

    Added a new survey stat for transmission type. Not surprisingly, manual outnumbers CVT by more than 2-1. KTuner has an over 3-1 lead on Hondata. And finally, less than 20% of owners have been custom tuned.
     
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  10. Anger

    Anger Senior Member

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    #310 Anger, Dec 4, 2019 at 5:08 AM
    Last edited: Dec 5, 2019 at 2:01 AM
    Vehicle: 2019 CR-V AWD (EUDM) L15BY MT(manual) / Si pistons - non Si connecting rods

    ECU: 5ST-G05

    Gas: 98 RON E5 (Shell only) - rarely 100 RON (Shell only)

    LTFT: -3.0 up to 5.0 rarely

    Total tuned time: 1 month

    Total tuned mileage: 1.000 miles

    Tuning device(s) used: Ktuner V1.2

    Tunes used: Ktuner base 21 DUAL (no quick enables/quick adjustments)

    Additional engine mods: PRL SRI street MAF, smaller sized mufflers/OEM pipe diameter / Intake resonator delete / Hondahack with tunerview lite

    Oil used: Mobil 1 5W-30 ACEA C2/C3 (oil and oil filter change every 3000-4000 miles)

    Problems/issues: OEM HU randomly changes brightness. Not Ktuner or Honda hack related. Has occurred 4-5 times in 12 months.

    Driving style: Very speedy with often aggressive bursts, start driving after 1 minute, never WOT if ECT is below 80 or over 85. Rarely using ECON after reflash. Car is too exciting to drive on 21 PSI!

    Notes: Knock counts recorded 1 to 5, with stock spark plugs/OEM gapping, Knock control increases from 0.49 to 0.77 after long pulls (50mph to 140mph). Always 0.48/0.49 even at 60% or above TPS
     
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  11. Jes_si562

    Jes_si562 Senior Member

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    Jese
    Car(s):
    2018 civic si
    Seems like his own tune missed up his motor
     
  12. varge

    varge Senior Member

    Joined:
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    Location:
    Greece
    First Name:
    George
    Car(s):
    Civic 1.5T 4D Elegance EUDM
    Vehicle: 2017 Civic Sedan (EUDM)

    Total tuned time: 20 months

    Total tuned mileage: 20,000+ miles

    Tuning device(s) used: KTuner v1.2

    Tunes used: KTuner Starter21, TSP Stage for the non-Si, My custom 24psi tune

    Fuel used: Mostly Shell V-Power 98RON

    Additional engine mods: Mishimoto Intake

    Problems/issues: None

    Driving style: Slightly speedy with aggressive bursts from time to time.

    Tuning experience notes: I've had all my turbo cars tuned. This is the first time I am using a tool on my own. Returning the car to factory from time to time for the dealer service visit reminds me how awesome tuning this car is :)
     
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  13. FK8_K20c1

    FK8_K20c1 HONDA The Power of Earth Dreams Technology!

    Joined:
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    Occupation:
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    First Name:
    John
    Car(s):
    MKV R32, FK8 Type R
    For some reason my car is not saving the history. Are you doing anything specific to save it?
     
  14. dark_knight097

    Joined:
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    Location:
    Georgia
    First Name:
    Daniel
    Car(s):
    2017 Civic Si
    Vehicle: 2017 Civic SI

    Total tuned time: 15 months

    Total tuned mileage: 13,000+ miles

    Tuning device(s) used: Hondata flashpro, currently using KTuner v1.2

    Tunes used: Custom tune on Hondata, Hondata +9psi, KTuner dual 19.5 and 23 psi map

    Fuel used: Sunoco 93, Exxon 93, Shell 93, 93 at PX shop exchange gas station

    Additional engine mods:
    Prl Cobra CAI, was previously on K&N performance intake system, Prl intercooler and charge pipes, catless downpipe, frontpipe, takeda 3-2 1/2in exhaust, fx400 with single mass lightweight flywheel (Will soon be installing Prl big turbo gtx2860, will report back after a few weeks with it on)

    Problems/issues: On hondata +9 psi, engine went into limp mode about 3 times within 2 week period. Seemed to happen when I suddenly let off the throttle after WOT between 4k-5k rpms. Turning the engine off and then back on fixed the issue. Havent had this issue crop up again since then.

    Driving style: occasionally relaxed, mainly spirited, very aggressive on curvy roads, pulls from 20-60 at least twice a day

    Tuning experience notes: none
     
  15. Micah

    Micah Senior Member

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    Car(s):
    '17 Si 4DR FlashPro +9psi (3k-14k) Ktuner TSP Stage 1(14k-30k+) '17 Traverse LT AWD
    Somewhere buried in the menus is a setting to reset trip on fuel fill up.
     
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