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P0321 Diagnostic Trouble Code Discussion for November 2005

Crankshaft Position Sensor Circuit Range/Performance

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Trouble Ticket Help Requests for DTC P0321
Help Request Posted
1995 Pontiac Trans Sport 3.8L MIL Lamp on VIN: 1GMDU06L5S
P0321: SPARK REFERENCE LOST Current Code. Mill lamp on with PO321 & P1361 current codes.17 different history codes. Van has no driveability problems. Followed alldata's diagnostic tree and ended replacing ecm & prom. When I clear the codes and cycle the key to the on position I end up with 4 h...
November 18, 2005