P0261
PowertrainFuel Injectormoderate severityCylinder 1 Injector Circuit Low
What P0261 Means
Low voltage in the cylinder 1 injector driver circuit.
Symptoms
- Check Engine Light
- Misfire cylinder 1
- Rough idle
Common Causes
- Short in injector wiring
- Faulty injector
- PCM driver issue
Diagnostic Steps
- Test injector resistance
- Check for shorts
- Test PCM output
Where to start: Repair wiring or replace injector.
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