P0335 Chevrolet - Crankshaft Position Sensor 'A' Circuit Malfunction
- Crankshaft position sensor harness is open or shorted
- Crankshaft position sensor circuit poor electrical connection
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- Possible lack/loss of Power
- Engine may stall while driving
The Crankshaft Position Sensor (CKP) works in conjunction with a 24X reluctor wheel mounted on the rear of the crankshaft. The CKP sensor has a B+ power supply, a ground, and a signal circuit. As the crankshaft rotates, the reluctor wheel teeth interrupt a magnetic field produced by a magnet within the sensor. The sensor's internal circuitry detects this and produces a signal which the Powertrain Control Module (PCM) reads. The PCM uses this signal to accurately measure crankshaft velocity which is a variable used in order to detect misfire, spark and, fueling.