P0366 - CAMSHAFT POSITION SENSOR "B" CIRCUIT RANGE / PERFORMANCE BANK 1

POST UPDATED IN January, 2023

Description of DTC code P0366 Generic

The DTC P0366 OBDII is a generic code that basically indicates that the PCM (Powertrain Control Module) has detected a problem with the CMP B (Camshaft Position Sensor) signal output. This code applies to engine bank number 1.

The PCM can determine the position of the camshaft through the signal that the CMP Sensor delivers to the PCM. This signal is specific to the top dead center on the compression stroke. To accomplish this, a reluctor ring is attached to the camshaft. If the signal from this sensor is erratic, this code will be set.

Symptoms of fault code P0366 Generic

  • Check Engine light ON.
  • Difficult start of the engine.
  • If the engine runs smoothly, there is less fuel consumption.

Causes of OBD2 P0366 Generic

Reasons for setting the P0366 OBD2 error code:

  • The Camshaft Position Sensor wiring may be damaged.
  • There may be damage to the CMP Sensor
  • The sensor reluctance wheel may be faulty.
  • The Camshaft Position Sensor "B" may be defective.

Possible solutions of the DTC code P0366 Generic

To solve the P0366 OBDII fault code, try this:

  • First, consult the Technical Service Bulletins (TSB). Remember this code can occur on vehicles that do not have a CMP Sensor. In those cases, it is due to an engine malfunction resulting from bad spark plugs or wires.
  • Check the CMP Sensor wires for obvious defects. Also, check that these components are not rubbing against coils or spark plug wires. Make corrections accordingly.
  • Inspect the Camshaft Position Sensor B for damage. Also, check the reluctor ring for worn or bad teeth. Make repairs and, if necessary, replace the sensor.

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