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P0321 Diagnostic Trouble Code Discussion for November 2009

Crankshaft Position Sensor Circuit Range/Performance

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Trouble Ticket Help Requests for DTC P0321
Help Request Posted
1995 Buick Regal 3.8L Stall VIN: 2G4WB5215S
P0321: spark ref. ... stall. will not duplicate for us. MIL not on, but 4 codes present. started on the p1670 quad driver fault code and came up with PCM not grounding relay for cooling fan #2 (fan was not running, but no complaint for that. a/c...
November 12, 2009