Quote:
|
Originally Posted by DSSDOG
Smells like a TPS to me.. (Throttle Position Sensor) btw Didnt the 95 Blazer have a Digital EGR Valve.. EGR valves usually cause the reverse affect dies runs like crap..
|
totally not EGR. as you said, EGR causes very rough idling and/or stalling, certainly not high idle speed.
the IAC on the other hand, controls how much air gets by the throttle plate when the trottle plate is closed. thus if the IAC is dirty or improperly set, too much air get by. the computer in turn, sets the fuel mixture to match the air the going in to keep the proper ratio.