I don't have turbo yet, but i figure a buncha you guys have experience with obd1 on obd2 cars. It starts up fine when it's warm. When it's cold, I gotta hold the revs up until it warms up some or else it stalls. Any ideas on what's going on or how to fix it? thanks

 

I have the same problem, P28 ECU w/ Hondata. I thought it was the ported head...

I tried everything I could think of... replace IAC valve, set the TPS sensor to 0.47VDC at close, adjust idle setting per instructions... nothing worked.

Post if you find out what's going on.

(no bouncing idle, idles good when warm, has "fast idle" when cold, but hitting the throttle sends it bouncing, then it stalls... until water temp is about 120F)

Sean

 

My obd2 ecu works fine. I don't wanna go back to it cause I feel a difference, especially when the secondaries open