alright the car idles fairly well, just kinda still a little rough even tho i have a cc503. i scanned the car with a good scanner, the sensors and numbers that i don't list i know are fine. here are the others.

MAF 9g/s
IAC 24
TPS 0% .75v
short fuel trim one side is 2 the other is 10.

the car has a cc503 holds 15" of vac, ported intake, tb, maf, and gasket matched heads. 1.6rr. that about sums it up as far as relevant mods go. i also fixed my noisy rear end today! YAY! lol

 

anyone?

 

Short term fuel trim data is meaningless. That is a condition that lasts for about 1/10th of a second, then the PCM continues to cycle them from + to - and back, causing the A/F ratio to swing back and forth between slightly rich and slightly lean. The cats only work if it runs that way. Since each bank of the engine is controlled independently, the short terms aren't even going to be the same.

MAF, IAC, TPS and TPP look normal.