Quote:
Originally Posted by blsfrs
Is there a way to bench test an ECU?
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not sure on that.
Quote:
Originally Posted by Dzmitry
Those compression numbers aren't bad. Based on what you're saying, they're all about the same and are upwards of 100 psi. Maybe a little on the low side, but I'm not exactly sure in this case that it's a bad thing.
Sorry to hear you're going through such a headache and still haven't had a resolution. Hope it's something simple and you or the shop can quickly get to the bottom of it.
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thanks, i might just follow IAG's recommendations and run it with the turbo kit since they said might be a tuning issue.
I began asking IAG for some assistance/advice. They said that compression and leak down should wait til break in. they also said that high fuel trims might be caused by my setup lower compression block with a stock tune, they recommended a base tune, i do have a base tune by for a turbo kit, but since it seems im really unlucky. I got my turbo kit the other day (hooray), but they forgot to make my manifold a recirc dump so back it goes to get fixed. ugh.
Quote:
Originally Posted by FrickingReallySlow
If LTFT was your only remaining problem (you said it starts up fine now) you can keep looking for vacuum leaks / hoses etc shouldn't be an engine issue. I think you're close to solving this. Maybe check the installation of the knock sensors in case they're oriented wrong.
Actually, since you said you're using 10:1 CR, it might make sense to have high positive LTFT using a stock rom since the baseman is for 12:1. You're sucking in more air then ECU expects so its giving you more fuel. Talk with your tuner
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Well no my issue of starting up and shutting off immediately still happens but i believe it only happens when the car is cold. I remember seeing a thread about the issues im having minus the high fuel trims.
IAG mentioned the reason why i might be seeing high fuel trims because stock tune with lower compression may cause it. I still want a more definitive answer since my motor is currently out of the car again. I believe the high fuel trims could probably be tuned out since i have confirmed my injectors work, and my fuel pump is fine, i added a fuel pressure gauge inline on the fuel lines. I'll have to wait since i do have a base tune for built motor with turbo and have to wait for my turbo hot parts to come back after they fix the issue of forgetting to make a recirc dump tube manifold/downpipe.
a thread where the OP had almost the exact same issues i had. seems to have solved it by tuning it out.
https://www.ft86club.com/forums/show...107300&page=14