DriftNsc3

It just started yesterday and I didn't think anything of it, but now its kinda of annoying. It doesn't affect the way the car drives at all except when your stopped and little ricers next to me think I'm reving at them and want to race,lol.
I've played with the throttle cable and no matter what I do with it it still gives itself gas. I'm thinking something to do with the fuel pump? Could this be the reason or do you all have something else it could be?
Any info will be great, thanks!
Richard

TT6SPDSC

ISC sticking open?

DriftNsc3

ISC??? What does that stand for.

skeet94

Car might be possessed by a racer?

TT6SPDSC

Idle speed control. It's located on the intake manifold and allows air to pass, unmetered into the engine to keep the idle. If you take the hose off and put your thumb over the opening and are able to keep the car idling properly that's a pretty good indication that it's sticking.

There's a complete testing procedure reccomended by Toyota as well, but it's much more long and drawn out.

DriftNsc3

^^^^I'll try this when I get home. Anymore ideas just in case thats not it?

TT6SPDSC

No, I think it sounds like that more than anything else.

The ISC is a "stepper" motor. It has several different stages of "openness" that it can be in. That way when it's cold it will allow more air in to raise the idle, then as the engine warms it will open less to lower the idle.

You won't want to completely cover the hose with your thumb, but rather find the "happy" spot where the car wants to idle best.

Sometime you can clean them as they get a carbonlike buildup on them causing them to stick. Sometimes they must be replaced. Typically used ones can be picked up fairly cheap.

If you can get ahold of a circuit tester and a service manual you can measure the continuity between the pins and find out if it's the culprit also.

Good luck! Lmk how it goes!