dewolfen
New Member
- Joined
- March 18, 2012
- Messages
- 2
- Reaction score
- 0
- City, State
- Willow Springs, NC
- Year, Model & Trim Level
- 2004 Explorer
My wife's 2004 Explorer NBX CEL came on and she had it scanned. It printed codes P0300 and P0303 - misfire. I replaced the Mass Airflow Sensor, EGR valve, plugs and wires awhile ago. The vehicle had been running good until the CEL came on. Any ideas on what would cause this.