Exhaust Valve Position Sensor Out of Range
The exhaust valve position sensor is reporting a value outside its normal operating range.
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What it means (plain English)
The exhaust valve position sensor is telling the engine computer that the exhaust valve isn't opening or closing as it should. This usually means there's a problem with the valve movement or the sensor itself.
What the computer is actually seeing
The engine control module (ECM) expects the exhaust valve position to change in a predictable way, typically between 0.5 to 4.5 volts as the valve shifts from fully closed to fully open. If it stays at the same voltage or goes outside of these limits, a fault is triggered.
What a healthy reading looks like
0.5 to 4.5 volts while the valve is operated under various engine conditions.
Guided diagnostic — the DiagCoach way
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.
- 11. Check the exhaust valve position sensor wiring and connectors for damage or corrosion. Repair or replace as needed.
- 22. Measure the voltage at the exhaust valve position sensor connector with the engine running. It should read between 0.5 to 4.5 volts. If it's outside this range, continue to step 3.
- 33. Check the exhaust valve actuator for proper movement. Manually operate it and observe if it opens and closes fully. If not, replace the actuator if it’s stuck or malfunctioning.
- 44. If the actuator is working correctly, replace the exhaust valve position sensor. Clear fault codes and retest.
- 55. If the problem persists, inspect the exhaust system for mechanical blockages or damage that could affect valve operation.
Common causes
- Faulty exhaust valve position sensor
- Wiring issues or connectors damaged
- Faulty exhaust actuator
- Mechanical issues in the exhaust valve mechanism
- Calibration error in the ECM
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's best not to drive with this code, as it can lead to performance issues and increased emissions.
Will the code come back after repair?
If the root cause is properly fixed, the code should not return.
Why does this code pair with other codes?
This code often indicates a system-wide issue, meaning that multiple components could be affected.
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