- Test drove and inspected vehicle. Verified customer concern. Scanned for fault codes. Found fault code P0300 – Engine misfire detected. History showed 1150 misfires of cylinder 7. Swapped coil pack and ignition wire. Misfire stayed on cylinder 7. Checked fuel pressure from pump and at fuel rail. All fuel pressure at manufacture specs. Performed fuel injector balance test. All injectors within manufacture specs. 60 psi closed and 24 psi injector open. . Inspected cylinder 7 spark plug. Found spark plug to be bad. Replaced cylinder 7 spark plug and retested for misfire. No misfire at this time. Found mass air flow sensor very dirty. Recommend clean mass air flow sensor.
- SPARK PLUGS – Remove and Replace – each – All Applicable Models
Kurt G. gave our service a 5 star review on 1/18/2020