OBD-II code guide
P0201 Injector Circuit Cylinder 1
P0201 means the fuel injector circuit for cylinder 1 has an electrical fault.
What it means
Cylinder 1 may not be receiving proper injector control.
Common symptoms
- Misfire
- Rough idle
- Fuel smell
- Poor power
- Check engine light
Likely causes
- Faulty injector
- Damaged injector wiring
- Poor connector contact
- PCM driver issue
- Open or shorted circuit
First checks
- Check for matching cylinder misfire codes.
- Inspect the injector connector.
- Use a noid light or scope when appropriate.
- Avoid driving hard with an active misfire.