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P0339 Diagnostic Trouble Code Discussion for January 2005

Crankshaft Position Sensor Signal Intermittent

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Trouble Ticket Help Requests for DTC P0339
Help Request Posted
1997 Chevrolet Blazer 4.3L Misfire, MIL Lamp on VIN: 1GNDT13W4V
P0339: CKP Sensor Circuit Malfunction (Intermittent). Hi all in IATN land This Blazer came to me from another shop. I scoped the motor and scanned the computer systems. Cam sensor lab scoped fine, but the crank sensor at and above 2800 rpm would develop a ghost signal about every sixth signal. I found this odd as...
January 04, 2005