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P1624 Diagnostic Trouble Code Discussion for February 2013

Immobilizer Communication Error

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Trouble Ticket Help Requests for DTC P1624
Help Request Posted
2003 Audi A6 Quattro Avant 3.0L Misfire VIN: WAUVT64B43
P1624: MIL Request Signal Active has tranny codes. This Audi originally came in for a misfire, smoking and running rough. We replaced the vacuum valve for the crankcase vent system (diaphragm ruptured) and cured the lean condition, smoking and rough idle. Car was left with a misfire cold on cylinder 1. Replaci...
February 12, 2013