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P1621 Diagnostic Trouble Code Discussion for November 2013

Control Module Long Term Memory Performance


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Trouble Ticket Help Requests for DTC P1621
Help Request Posted
2000 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54YXY
P1621: Control Module Long Term Memory Performance. ... auction. Very nice clean car. His complaint was the check engine light is on and the car shifts hard. We scanned the check engine light and found: P0101 Mass Air Flow Circuit Out of Range P0335 CKP Sensor "A" Circuit...
November 27, 2013
2000 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54YXY
P1621: Control Module Long Term Memory Performance. ... dealer bought this car at the auction. Very nice clean car. His complaint was the check engine light is on and the car shifts hard. We scanned the check engine light and found: P0101 Mass Air Flow Circuit Out of Range P0335 CKP Sensor "A" Circuit...
November 27, 2013