Cylinder 1 Alternative Fuel Injector Control Circuit/Open

Where it lives

For P22D9, the injector sits on the circuit this code reports. The description of P22D9 puts it on cylinder 1.

Check these first

• An open winding in the cylinder 1 alternative fuel injector
• Broken or chafed wiring to the injector
• Corroded injector connector pins
• A failed injector driver in the fuel control module

What to do next

1. Inspect the cylinder 1 alternative fuel injector connector and wiring
2. Measure injector resistance and compare it to the other cylinders
3. Check the control and ground circuits for an open
4. Swap the injector with another cylinder and see if the fault moves
5. Replace the injector if resistance is out of range
6. Clear the code and retest

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