2007 Ford F-450 6.4 Diesel Engine P0003 and P0102 Fault Codes - No Throttle Response, Won't Start
A 2007 Ford F-450 equipped with a 6.4L diesel engine was towed behind another vehicle and showed no response to throttle input. After being towed, the truck will not start. Diagnostic trouble codes detected are P0003 (missing or incorrect signal from the oxygen sensor) and P0102 (Mass Airflow Sensor providing low input). The vehicle exhibits a complete lack of throttle responsiveness prior to failure, and now fails to start entirely. These fault codes suggest potential issues with engine air intake sensing or exhaust gas feedback systems, which are critical for proper fuel delivery in diesel engines.