I have a 2001 Saturn SL1 with high idle problems, ive replaced the computer tps and map sensor, ive also cleaned the throttle body, what else could be causing the issue

Check the hoses on the vacuum system, Check the TPS and if those are fine, replace the throttle body.

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

sounds like failing throttle position sensor on throttle body

I believe your referring to the mass air flow sensor, poss MAP sensor

The first thing you need done is a scan of the TCM for fault codes

Sounds like a Tps issue (throttle position sensor). It's thinking it's closed throttle when it isn't.

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.

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.

If the problem is fixed by turning the car off and then right back on and the idle levels back out then it is the Throttle Position Sensor (TPS). It is located on the throttle body and is one of the two sensors (the other is the Idle Air Control Valve IAC).

Replace the TPS. If that does not work then replace the Engine Coolant Temp sensor. It is notorious to go bad and crack because it is plastic. That also effects your idle.

no need to replace the throttle body , and i think that you make a test before to buy any piece . disconnect the negative battery terminal few minutes, then connnect and start engine again, drive few minutes by observing the engine, if light comes again, replace only map sensor ,good luckl