I have a 1999 Isuzu Trooper with a very high idle (3000rpm in Park) that started after I plugged in the Idle Air Control valve (found it unplugged). I reset the IAC via my manual’s instructions with no help. I also cleaned the IAC and the port where is goes into the throttle body and that didn’t h…

1999 Isuzu Trooper, high idle

NYBo February 22, 2008, 2:54pm 4

HAve you taken it to AutoZone (or a similar store) for a free scan for diagnostic trouble codes?