P1231 BUICK Injector Circuit Cylinder 4 Intermittent
P1231 BUICK – Injector Circuit Cylinder 4 Intermittent
P1231 BUICK – Injector Circuit Cylinder 4 Intermittent
P1231 CADILLAC – Injector Circuit Cylinder 4 Intermittent
P1231 CHEVROLET – Injector Circuit Cylinder 4 Intermittent
P1231 FORD – High Speed Fuel Pump Relay Activated
P1231 GMC – Injector Circuit Cylinder 4 Intermittent