Turbocharger Wastegate Position Fault
This code indicates a problem with the wastegate position on the turbocharger.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The wastegate controls how much exhaust goes to the turbo. If the engine sees the wastegate isn't moving correctly, it throws this code. It could mean the wastegate itself is stuck or the actuator isn't working.
What the computer is actually seeing
The ECM sees a discrepancy between the commanded wastegate position and the actual position reported by the sensor. Expected values are 0% (closed) to 100% (fully open) based on engine demand, typically changing between those values rapidly during operation.
What a healthy reading looks like
Wastegate position should be reported between 0% and 100%. Compare this with the desired position based on boost pressure, which can be around 14.5 psi at full load.
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 wiring and connectors to the wastegate actuator. Look for any signs of damage or corrosion.
- 22. Inspect the vacuum lines for any leaks or blockages.
- 33. Manually check the movement of the wastegate. Ensure it moves freely without binding.
- 44. Measure the voltage signal at the wastegate position sensor. It should vary between 0-5V depending on the position. If it’s fixed, suspect a faulty sensor.
- 55. Command the wastegate to position using a scan tool and monitor the actual position. If it doesn't move as expected, replace the actuator.
Common causes
- Sticking wastegate
- Faulty position sensor
- Wiring issues between sensor and ECM
- Vacuum line leaks
- Faulty wastegate actuator
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable, but performance may be reduced, especially under load.
Will the problem come back after fixing?
If the root cause is fixed, it shouldn't come back; otherwise, monitor for reoccurrence.
Why does this code often pair with other codes?
Related codes often indicate issues with the boost system, hence multiple codes can appear together.
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