Sorry, about that, I usually do. :)
I.A.C. -- Idle Air Control -- Responsible for regulating engine idle speed.
T.P.S. -- Throttle Position Sensor -- Reports to the computer the position of the throttle which is responsible for calculating the proper air/fuel mixture.
You may also want to check the M.A.P (Manifold Absolute Pressure) sensor.
The I.A.C. Is the most costly to replace (over $100) for your vehicle. I recommend just having it cleaned. The M.A.P. Sensor is cheap, about $30 for the part. The T.P.S. Sensor is also rather cheap and goes for about $25-$30.
Monday, February 6th, 2006 AT 7:30 AM