Firebird V8-5.7L VIN G (2001)
Crankshaft Position Sensor: Service and Repair
CKP System Variation Learn Procedure
IMPORTANT: While the learn procedure is in progress, release the throttle immediately when the engine starts to decelerate. The engine control is
returned to the operator, and the engine will respond to throttle position after the learn procedure is complete.
1. Install the scan tool.
2. Apply the parking brake.
3. Block the drive wheels.
4. Close the hood.
5. Place the transmission in Park if the vehicle has an automatic transmission, or in Neutral if the vehicle has a manual transmission.
6. Idle the engine until the engine coolant temperature reaches HC (150°F.
7. Turn OFF all of the accessories.
8. Apply the brakes for the duration of the procedure.
IMPORTANT: If the CKP System Variation Learn Procedure cannot be completed successfully, refer to DTC P1336 for additional diagnostic
information.
9. Enable the Crankshaft Position System Variation Learn Procedure with the scan tool.
10. Slowly raise the engine speed to 4000 RPM.
11. Immediately release the throttle when the engine speed decreases.
12. Turn OFF the ignition for 15 seconds after the learn procedure is completed successfully.
