I can't figure this out for the life of me. I've replaced every damn sensor, reset the IAC, and just had the LM flashed for my 42pph injectors. Everything runs great when warm and looks perfect on the OTC scanner but this TII converted Omni GLH can't idle worth a crap on a cold start.
It is smooth as butter for the first 10 seconds after cranking then the A/F meter falls into this cycle of waving slowly from 17:1 lean to 11:1 rich and back again. The idle speed follows the A/F sweep and drops to a stuttering 300rpm before bouncing back up to 2000 repeating again and again until the temp comes up. If I try to drive it before the idle settles it will hang at 2000rpm until I'm almost stopped.
What is wrong with this car?