High Idle?

scpride

Registered User
My 1990 sc it will idle at 2500-3000 and even if i put it in drive keeps giving it gas and keeps going faster any ideas of what the problem is please help me out dont know how much longer my brakes are gonna last. I have to pretty much hold the brakes the whole time i drive.
 
My 1990 sc it will idle at 2500-3000 and even if i put it in drive keeps giving it gas and keeps going faster any ideas of what the problem is please help me out dont know how much longer my brakes are gonna last. I have to pretty much hold the brakes the whole time i drive.

Likely cause would be the IAC is dirty. Those cannot be cleaned and must be replaced. Other possible causes would be the TPS is out of range. Do a search on IAC and TPS here.
 
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