P0387

2017-10-10

Description:

  • The fault code P0387 indicates that there is a low input signal detected from the crankshaft position sensor B circuit. This can cause issues with the engine's timing and performance.

Possible Symptoms:

  • Difficulty starting the engine

  • Engine misfires or stalls

  • Poor acceleration or power

  • Rough idling

  • Illuminated check engine light

Possible Causes:

  • Malfunctioning crankshaft position sensor

  • Damaged or corroded wiring in the circuit

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Crankshaft Position Sensor: The crankshaft position sensor monitors the position of the crankshaft to regulate fuel injection. Problems lead to engine misfire and engine stalling

Possible Solutions:

  • Replace the crankshaft position sensor

  • Check and repair any damaged wiring or connections

  • Tighten or clean any loose or corroded electrical connections

  • Replace the engine control module (ECM) if necessary

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