P1231 CHEVROLET Possible Causes
- Faulty fuel injector 4
- Fuel injector 4 harness is open or shorted
- Poor electrical connection in fuel injector 4 circuit
How to Fix Code P1231 CHEVROLET?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1231 CHEVROLET Meaning
Cylinder 4 injector circuit intermittent is the generic description for Chevrolet code P1231, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have any further information about Chevrolet OBDII code P1231.