High Idle

[Noodle21]

Car's been ideling high whenever I'm stopped at a light, in park, basically whenever my foot is off the gas. I've cleaned the TB and that fixed it for like a day. Its not tripping any idiot lights. Mechanic thinks its a vac line, but I can't hear a sucking noise. He told me it would take him some time then to go over and check and see if one is leaking. It idles between 1400 and 2200 rpms

Any help on what to do would be appreciated.

thanks
Noodle

[PontiacGT2K]

Look closely to make sure all wiring harnesses are connected around your intake (maf, tb, baffle tube).

[ImpetuousRacer]

dont know if this is the case. but I have had numerous TPS sensors go bad, no dash light, but car will idle high, then you put it neutral and its high, and sometimes can rev it or get it to die down. Get the TPS sensor from autozone and try that, its a cheap and easy fix, if not return it.