Turbocharger Boost Control Position Sensor A Performance - Stuck Low

Where it lives

For P2598, the part to look at first is the sensor named here.

Check these first

• A dirty or failed turbocharger boost control position sensor A
• A sticking wastegate or variable geometry actuator
• Corrosion at the sensor A connector
• Low battery voltage keeping the sensor A signal low

What to do next

1. Read turbocharger boost control position sensor A on a scan tool
2. Inspect and clean the sensor A and its wiring
3. Check the wastegate or variable geometry actuator for sticking
4. Check battery voltage and connections
5. Replace the turbocharger boost control position sensor A if the actuator tests good
6. Clear the code and retest

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