1998 Saturn SL1 accelerator

See if u have any codes and if u do let me know what they are.U should the way that is running. Take off ur intake tube make sure ur throttle plate is closing all the way.I would suspect a vaccuum leak or a stuck idle air control motor. Lets try this to see which one we have. With the intake tube off u will see a opening at the bottom off ur throttle body opening. Block that hole off not with ur finger incase the car back fires thru the throttle body get creative. See if the idle comes down alot if not its getting air somewhere else. Also inspect ur s shaped hose going from ur intake manifold to ur valve cover look for colasping or holes. Let me know what u find.

if u dont live in california u can get ur codes checked for free from any auto parts store like autozone.u cant find the s shaped hose maybe u have a sl2 and not a sl1 i posted a pic of the sl1 valve cover does urs look like that?if not u have a sl2.so the engine dies when u cover the hole?ok next step then i posted a pic of the throttle body and the idle air control valve its figure 7 i want u to tap on it while the car is idling really high dont hit it hard enough to knock it off of course.just a good tapping see if the idle comes down.and see about getting me some codes if u dont live in california at the auto parts store.let me know what u find.

It sounds like the idle air control valve is causing the high rpms but we don't know if the motor is frozen up or if carbon is keeping it from closing the proper depth or if we have a wiring issue keeping it from getting power to the motor to move it in and out. If we saw if it had codes or not that would help also.I would try getting a good brand of carb spray and removing that valve and cleaning the plunger tip and that hole u cover to make the idle go down real good and see if that helps. Let me know what u find.

The pic I posted with the throttle body has the tps in it it's figure 6.U can try replace the tps but u could very well have a wire or terminal tightness or some other issue instead. But if u would like to try swaping it that's up too u. Let me know what u find.

Have u tried taking off the idle air control motor like I suggested and cleaning the port and the tip of the motor yet. Let me know.