Unfortunately, the age of your car points to a defective TPS. You can check the voltage of teh TPS and the Idle switch with a voltmeter at the ECU or ... borrow a datalogger or let the dealer hook up the DRB2 to get the values.
any one ever have a problem with the throttle position sensor or related components. i think the dash pot in my car is shot. when i let out the clutch sometimes the RPM's dont drop or they jump a little. i bypassed the vacuum valve that is connected there and it ran the same. any one have any ideas????
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