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P03F9

B Camshaft Position Actuator Position Sensor C Circuit High Bank 1

Generic OBD-II

Common symptoms

What you'll notice

Common causes

Most likely first

  1. Faulty camshaft position actuator position sensor
  2. Loose or corroded wiring connections to the sensor
  3. Faulty engine control module (ECM) or powertrain control module (PCM)
  4. Short circuit or open circuit in the sensor circuit
  5. Faulty camshaft position actuator

How to diagnose & fix

Work through it in order

  1. Engine misfires or runs rough
  2. Loss of power or poor acceleration
  3. Stalling or difficulty starting the engine
  4. Increased fuel consumption
  5. Illuminated check engine light

Read & clear P03F9 yourself

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