Wastegate Position Sensor A Exceeded Learning Limit

Where it lives

For P2B93, the description names the sensor as the part involved.

Check these first

• A wastegate position sensor A that has drifted out of its learned range
• Carbon or oil on the wastegate actuator linkage
• A binding or worn turbo wastegate actuator
• Corrosion or damage in the sensor A wiring or connector
• A sticking wastegate that cannot reach its travel limits

What to do next

1. Inspect the wastegate actuator linkage for carbon or binding
2. Check the sensor A connector and wiring for corrosion
3. Read wastegate position sensor A data with a scan tool through its travel
4. Command the wastegate actuator and watch the position change
5. Replace wastegate position sensor A or the actuator if it cannot relearn
6. Clear the code and retest

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