Turbocharger Outlet Pressure Sensor B Intermittent/Erratic

Where it lives

For P01FE, the part to look at first is the sensor named here.

Check these first

• A loose turbocharger outlet pressure sensor B connector
• Chafed wiring on the sensor B circuit
• A failing sensor B element
• A boost leak that comes and goes
• A poor ground for sensor B

What to do next

1. Wiggle test the sensor B harness on live data
2. Inspect the sensor B wiring for chafing
3. Check the turbocharger outlet plumbing for leaks
4. Replace sensor B if the signal jumps
5. Clean the connector and ground
6. Clear the code and retest

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