P1231 GMC - Injector Circuit Cylinder 4 Intermittent
- Faulty Fuel Injector 4
- Fuel Injector 4 harness is open or shorted
- Fuel Injector 4 circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1231 Gmc DescriptionInjector Circuit Cylinder 4 Intermittent is the generic description for the P1231 Gmc code, but the manufacturer may have a different description. Currently we have no further information abouth the P1231 Gmc OBDII code. Please post your question on our "Questions" section for more information: AutoCodes.com Questions.
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