P1228 GMC Possible Causes
- Faulty fuel injector 3
- Fuel injector 3 harness is open or shorted
- Poor electrical connection in fuel injector 3 circuit
How is GMC P1228 Code Repaired?
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)
P1228 GMC Meaning
Cylinder 3 Injector Circuit Intermittent is the generic description for GMC P1228 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we have no further information about GMC P1228 OBDII code.