Cylinder 12 - Injector Leaking

Where it lives

For P02C9, the part to look at first is the injector named here. The description of P02C9 puts it on cylinder 12.

Check these first

• A leaking injector on cylinder 12
• A failed injector 12 O-ring or seal
• A shorted or open injector 12 circuit
• An injector 12 not seated in the rail
• A faulty injector driver in the ECM

What to do next

1. Run a fuel system leak-down test
2. Check the cylinder 12 injector for a stuck-open nozzle
3. Inspect the injector 12 seal for fuel seepage
4. Verify the injector 12 is seated in the rail
5. Replace the leaking injector 12 and its seals
6. Clear the code and retest

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