Saturn SL 2002 High Idle

Have you removed and checked the IAC? (Idle air control)
Will it stay running when you manually hold the throttle? keeping the idle up?

need to read diagnostic trouble codes could b tps or iac

I believe this vid will help http://m.youtube.com/watch?v=E2uNwib3WPI&desktop_uri=%2Fwatch%3Fv%3DE2uNwib3WPI

it sounds like the ignition crntrol module

Cleaning it out has nothing to do with it. IAC does which happens to be mounted on it.

remove the throttle body (4 bolts) and then remove the idle air control (bolted to the TB, between the firewall and the throttle body)-clean the TB, the Idle air controller and remove the Throttle Position Sensor (opposite the IAC) and clean it if necessary. The IAC carbons up on these cars, as does the Throttle body-I know, I have a 99 SL with 180,000 miles, it is almost like an oil change as they get older.

firs check the engine light code..and u go from there, you have to know what the code is.otherwise it could be a number of things. fo example egr, tps,map sensor, iac valve, fuel filter.

The Idle Air Control valve is located on the throttle body. If you follow the intake tube from your air filter all the way back to the intake manifold, where the intake tube connects to is the throttle body. Remove the intake tubing and you can see the throttle body.

There are two sensors on the throttle body and a vacuum line. You'll see two harnesses going to the throttle body, one is the IAC.

However, a quick diagnostic check can be done without touching the throttle body to confirm your problem. If the car has a normal idle when initially started but then rises to a higher idle and stays there BUT then if you were to shut the car off and restart it and it comes back to normal that is the Throttle Position Sensor (TPS). This is also located on the throttle body (the other sensor to the IAC). If it is the IAC it will be high and maybe fluctuate a bit.

Sounds like a dirty IAC (Idle Air Control) valve. It is located on the throttle body. Remove it and clean it throughly as well as the throttle body underside as well where a lot of carbon build up is.

However, since it is such a high idle, check for any vacuum leaks. Check your hoses and lines running inside the engine bay, specifically near the intake. Spray some carb cleaner around while the engine is running to see if you can hear or see a leak. Check the intake gasket as well.

check TPS (throttle position switch)connections and TPS switch are renound for issues may need adjusting base idle, also check pcv hole in throttle body base manifold area clean out throttle body also if carboned up
is also possible this idle air control valve (IAC) is sticky due to carbon build up clean with carby cleaner or some sort of solvent