high idle
I am expericing the same problem. been chasing the problem for about a yr. I replaced the IAC solonid (idle air control) no change. my ECM has 111 also and two other codes neither is in the code lists I use a code reader.I checked with a tech said my computor lost it's ground.Sent me a wiring diagram which was not too helpful .checked the ground shown in hayes manual. showed continuity.I cleaned my TB several times.I even swapped my ECM for another No change. Now it was said about the intake leaking, I replaced my heads to correct a coolant leak,my head gskts was leaking,I changed those gaskets in the process No change in the idle,pls. note I have stick shift it is very annoying to have it idle at 1200 to 1400.the previous owner must have had the problem His version of a fix was to remove the check eng. light .I will welcome any help also.