•Incorrect ECM calibration (incorrect service part number)
•Faulty mechanical operation of the throttle
•Large manifold vacuum leaks
Suggested Actions
1Diagnose and repair any other present DTC codes before proceeding
2Replace ECM with the correct service part number
3Correct mechanical operation of the throttle
4Find and correct manifold vacuum leaks
5Clear DTC information from the ECM using the DST, turn ignition OFF and wait 30 seconds, then start and operate the vehicle to full operating temperature to verify repair
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