My car is very pissed at me for letting her set a long time and not getting enough time to stretch her legs.
Now she does like anything below 2000-2500 RPM.
Replaced the idle air flow valve, no happy.
Replaced the ICU, no happy. Bypassed both, different but not happy.
Smoke test for vacuum leaks, nothing found.
I can fiddle fart with the idle with the base adjustment screw on the flap inlet but that is just starving the system so get low and backfire when throttle up.
I feel I am missing something simple and basic
Removing the cold start valve for free flow and allowing open air makes the motor act very different but still not under control of the idle circuit.
No matter what is is way rich at this low RPM. The kind of rich that burns you eyes in a garage in 3-7 minutes.
I am perplexed. What to test?.
I'm missing something simple and obvious
Bob