I have a 98 Chevy S10, 177,000 miles, 2.2L 4-cyl. A few days ago it started idling at full throttle. It would drive OK in gear, but it idled at full speed.
The check engine light came on, and I have 2 error codes:
P0336-- Crankshaft Position Sensor A Circuit Range/Performance
P0507--Idle Control System RPM Higher Than Expected
I found a busted vacuum hose and replaced it. Now the engine lopes excessively at idle, but doesn't race like before. Any hints at this point would be greatly appreciated.
Friday, March 2nd, 2007 AT 8:32 AM