P0339 Crankshaft Position Sensor A Circuit Intermittent

If crankshaft position sensor input voltage is too low over a set period of time a p0339 code will be stored and a mil may be illuminated. A p0339 crankshaft position ckp sensor circuit intermittent interruption sets when the hall effect sensor signal received by the pcm has an incorrect amount of signal pulses between reference pulses. This provides a critical data signal used by the powertrain control module pcm to control ignition spark timing and fuel delivery.

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