Turbocharger/Supercharger Boost Control A Module Performance

Where it lives

For P00AF, start at the module the description names.

Check these first

• A stuck or slow boost control A actuator
• A faulty boost pressure sensor
• A binding wastegate linkage on the A circuit
• A boost leak in the charge piping
• A faulty ECM boost command

What to do next

1. Command boost control A with a scan tool and watch actuator travel
2. Compare commanded and measured boost pressure
3. Inspect the A circuit linkage and actuator for sticking
4. Smoke test the charge piping for a boost leak
5. Replace the boost control A actuator if it does not follow the command
6. Clear the code and retest

Look up another code