Diagnostic Procedure
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- Using scan tool, check TP sensor data values. See SCAN TOOL DATA under SELF-DIAGNOSTIC SYSTEM. Note scan tool data values, then go to next step.
- Test TP sensor. See THROTTLE POSITION SENSOR under COMPONENT TESTS. Perform TEST F: SHOCK OR LAG TIME WHEN SHIFTING FROM NEUTRAL TO DRIVE under SYMPTOM TESTS. Replace TP sensor if necessary. See appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE. If TP sensor tests okay, go to next step.
- Check electrical connections and wiring between TP sensor and PCM. See WIRING DIAGRAMS . Repair as necessary. If no problems are found, replace PCM. See appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE.