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  1. MAPerformance Civic SI 1.5T PCV System & Catch Can Testing/Observations

    https://patents.google.com/patent/US7137377B2/en In direct spark ignition engines, fuel is injected directly into each combustion chamber. Accordingly, less fuel may be inducted past the intake valves than in port injected engines. Inducting fuel past the valves cleans carbon deposits which may...
  2. Boost creep!! Help

    Just needed to correct you on this part....not one time have a charged or attempted to sell any file to anyone. I OFFERED the file I had to anyone who asked. Assisted anyone who reached out to me for assistance. If the op was using a hondata unit I would have already offered to fix the issue for...
  3. Boost creep!! Help

    I guess some confusion in that term post turbo as that is downpipe exhaust traditionally speaking. I should have said post compressor wheel/ pre throttle body I guess...lol... I am referring to the intercooler. A datalog would tell the true map reading which as stated would help. From my...
  4. Boost creep!! Help

    "Will work" and "designed to be used with" are two different things. Derek has said it before that it was developed on a factory vehicle. Can it be used with quality bolt ons? Of course. Can certain combinations of bolt ons create issues? Obviously. Im just telling you there isnt anything...
  5. Boost creep!! Help

    The intercooler/intake are the problem. That tune file wasnt really designed for bolt on cars (albeit people frequently use it with bolt ons- the degree of issues or not is subject to differences in each individual setup). If you had a hardware issue that was the "cars" fault then it would be...
  6. 4,000 rpm limiter

    Its just a preset lower factory rev limit so your not pegging 6600 rpm fuel cut while stationary.
  7. Myxal WTF Intake

    No sir the injectors failed and I traded in for my 2020 which I haven't modified...except razo gas pedal spacer and spoon shift knob...
  8. New Jersey FS: Coupe roof spoiler new

    Oh OK i misunderstood. What is wrong with the paint?
  9. New Jersey FS: Coupe roof spoiler new

    Let me know if your willing to ship this.
  10. Randomly Blown Bottom End

    I love the bickering about this lmao! Bolt ons and basemaps ftmfw!....from two different companies....with self admitted beating on the car....and an intake known to cause MAF signal issues.... seems quite simple... "BuT iT wOnT hAPpeN To mE!!" Sorry for your loss OP. You'll tread more...
  11. Acuity Shifter Kits

    The two main things the car does for increased engine response is it sends the cam angle full advance when throttle is applied (this in turn makes the engine mechanically more responsive) and it ramps up the throttle pedal commanded percentage (which also increases engine response but its...
  12. Really weird idle when warm, unpredictable

    If it is what I'm thinking it sounds like I have posted on this before asking essentially the same thing. Seems some people are more perceptive to noises (I am ocd about them). My 2018 and my 2020 Si' have both done this completely random light "knocking" sound from what seems to be the...
  13. P219F code, car is running normally...

    Mine was a p219d cylinder imbalance with the same description early on as far as symptoms go (lack thereof)...it got progressively worse until it would hit limp mode multiple times a drive cycle...thought I was going to need to call a wrecker on the way to trade it in! Probably early onset...
  14. MANUAL CARS...RAISED IDLE RPM

    Is the effect more during deceleration by chance? Around 2300 with no throttle and engine braking this area would buzz occasionally which cant really be tuned out. The idle would have no effect on this. I attributed this to the flywheel being dual mass (a quick tap on the throttle during this...
  15. Phearable 1.5 R

    Im sure you remember MAP losing their first mule test motor from a failed oil pump after they bumped the rev limit. Whats that raised rev limit store in the computer for an "over-rev" condition?
  16. Phearable 1.5 R

    Thats what I was thinking you were using. Slap anything other than a stock airbox on it and then monitor trim behavior....add a downpipe....intercooler... Its just crazy to me but Im also not on here or into these cars to make money so..... Someone told me not that long ago "remember its a...
  17. Phearable 1.5 R

    For some it works. Others talking about avoiding long idle time to prevent -14 ltft etc. Ive seen data of maf scale from other vehicles where the short trim plotting is literally all over the place while the long term is fairly steady/reasonable with OTS options. Rescale the maf and using a...
  18. Phearable 1.5 R

    Exactly. They all use excel spreadsheets and combined averages from all the different aftermarket maf sensor housing/locations. Which I think is a god awful way of operating a vehicle you dont want problems with but I digress.....
  19. Phearable 1.5 R

    Cool stuff! But I can smell more oil pump/shortblock failures in the future..... Dont be sorry, be careful!


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