ihiryu |
04-14-2008 03:39 PM |
Hi, I'm new here and this is my first post. Anyway I had a few question, I did search, but really couldn't find anything. Ok 94 on a rebuilt motor, the car runs great! Except for third gear and on, at 2500 rpms, the car studders spits and pops anything than 25% or more throttle.
Background on the car; 94 rebuilt JDM motor (guy bought another motor rebuilt it as the one in the car was going out). What been done to the car; GReddy FMIC, (no GReddy intake elbow though), 3in" downpipe with center cat delete, koyo radiator, 3in Racing beat exhaust, GReddy BOV, that should be it engine wise.
What I've done, added ground straps, replaced the fuel filter, rewire fans to IGN.
So first and second will go through 2500 and on like normal, in third, fourth, and fifth, she'll sputter at 2500 rpm. But lets say I take second to five thousand RPMs, shift into third, and I'll be higher than 2500 rpms, and the car runs perfect. If I'm at 2500 rpms, I can add about 10% throttle, and she'll go through it, it takes a bit but otherwise it'll go through, and this seems to end @ 3000 rpm, at 3000 rpms, I can floor her again and she'll drive normal.
The idle is good, no hard starts, no flooding. Just this stupid problem at 2500 rpms. I've tried to ground out the UIM, and I've added a few ground straps, and it feels a little better but still not perfect. I've changed the fuel filter too, and no avail. If someone could help me out where to start, or some key words to search lmk please.
Also, the motor is fresh and has about 100 miles on it, any other precautions I should take as far as break in period goes?
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