Camshaft Position Sensor Range/Performance Problem (Bank 1)

The camshaft position sensor tells the computer where the camshaft is, which helps time the engine's operation. If it sends wrong signals, the engine may misfire or stall.

The engine control module (ECM) monitors the signals from the camshaft position sensor. If the voltage is inconsistent (usually below 0.5V or above 4.5V), it knows there's a problem.

Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.

1. 11. Check the wiring and connector to the camshaft position sensor for damage or corrosion. If damaged, repair or replace as necessary. Decision: If wiring is fine, proceed to the next step.
2. 22. Measure the voltage at the camshaft position sensor connector while the engine is running. You should see a signal between 0.5V and 4.5V. Decision: If you see a signal, the sensor may be fine; if not, replace the sensor.
3. 33. Inspect the timing chain/belt for proper alignment. Look for significant wear or skipping. Decision: If misaligned, correct it and check for engine operation; if aligned, further investigate potential oil contamination around the sensor.

• Faulty camshaft position sensor
• Wiring issues or bad connectors
• Timing chain/belt misalignment
• Oil contamination of the sensor

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