Check your ECM for corrosion
Posted: Fri Mar 23, 2007 10:47 am
I was having high idle problems (2000 rpm). I checked everything and swapped lotsa parts. Finally decided to swap ECM. When I pulled mine I saw green corrosion on the ECM's pins and the connector. I cleaned the pins with a tiny wire brush. I used a .040" drill bit to clean the connector holes. I sprayed all with WD-40 and re-assmbled. She idles fine now.
Might be worth checking the wires on the ECM for other weird problems also.
Might be worth checking the wires on the ECM for other weird problems also.