superninja427
Newbie
Ok, Im new to this forum but i do have a few questions right off the bat. I put another 5.7 tbi motor in my truck and everything is hooked up, but i do have exhaust leaks. Im to the point of setting the timing. Me and my buddy dropped the distributor in at TDC and hooked all the plug wires up. I cranked the truck and i can adjust the cap to where it idles at the right rpm, but when it runs right and doesnt backfire through the tbi, it idles at like 2000. When it idles around 650 (what it used to idle at before i pulled the old motor out), it backfires through the tbi and runs like crap....my check engine light comes on automatically too. I have a 91 5-speed with a 5.7, the motor i put in it is from a 92 though. This is my everyday driver so theres not much done to it besides a streetfire coil, a tbi spacer and cold air intake...by the end of the week i will have long tubes and cheap mufflers due to the fact Iam out of money till next paycheck. Anyone know why my truck is running this way and why my check engine light is on now? I think that maybe when my buddy and I dropped the distributor in the #1 cylinder might not have been all the way to the top of the compression stroke and maybe the distributor is a few teeth off...but i dont really know much about timing and everything with these throttle bodys. So does anyone know what kind of problem Iam talking about and why its doing it? also what might i do to fix it? I would really appreciate the help.
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