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Home >> Oldsmobile >> 1990 >> Cutlass V6-189 3.1L VIN T FI >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Throttle Position Sensor >> Service and Repair >> Idle Learn Procedure
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Idle Learn Procedure

***UPDATED BY TSB 91-114-6E DATED NOVEMBER 1990

To restore the idle air control valve position information due to the absence of battery power, perform the following procedure:

1. Restore the battery power and place air conditioning controls if equipped in the "OFF" position.

2. Firmly apply the parking brake and block the drive wheels. START the engine and shift the transaxil to DRIVE for automatics or NEUTRAL for manuals.

3. Allow the engine to RUN a maximum of 10 minutes or until the engine cooling fan has cycled once, which ever occurs first.

4. Shift transaxil to PARK (A/T), NEUTRAL (M/T), turn the ignition key to the "OFF" position for at least 5 seconds.

5. Repeat step #2.

6. Allow engine to RUN for at least 5 minutes.

This procedure will allow the ECM memory to be updated with the correct IAC valve position and provide a stable idle quality.
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