Alternative Fuel System - Injector Leakage to Rail Detected

Where it lives

For P2A40, the description names the injector as the part involved.

Check these first

• An alternative fuel injector leaking into the rail
• A leaking injector seal or O-ring
• Excessive alternative fuel rail pressure forcing leakage
• A stuck-open alternative fuel injector
• Contaminated alternative fuel holding an injector open

What to do next

1. Read alternative fuel rail pressure on a scan tool
2. Run an injector balance test on the alternative fuel injectors
3. Check alternative fuel rail pressure with the engine off
4. Inspect the alternative fuel injectors and seals for leakage
5. Replace the leaking injector or seal if found
6. Clear the code and retest

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