I got a 90 N/A.

It starts up and idles at 1k every time. But after I drive it for a bit and I stop at a light the idle will sometimes be stuck at 2k.

It also happens if I stop and go into a store or get gas and the engine is still warm when I restart it it will go to 2k and then eventually go back to idling at 1k after I start driving it.

It idles at 1k after being warmed up and driven and it doesn't bounce or anything just idles high randomly.

Any help would be much appreciated.

 

My car makes these beeping noises maybe this is the problem?

2-beeps, pause, repeat - in case abnormality of engine speed signal:
The buzzer sounds twice and repeats when the vehicle speed signal is missing input and/or no engine speed signal is found (short circuit, broken wire, etc.)