LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 510 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> P0300 - Random Misfire Detected

P0300 - Random Misfire Detected

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2014 Lincoln Navigator, 2014 Lincoln MKZ, 2014 Lincoln MKX, 2014 Lincoln MKT, and 2014 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
P0300 - RANDOM MISFIRE DETECTED

Description:  This DTC sets when the misfire detection monitor detects an engine misfire in multiple cylinders or the PCM cannot identify which cylinder is misfiring.
Possible Causes: 
  • Damaged camshaft position (CMP) sensor
  • Low fuel (less than 1/8 tank)
  • Stuck open exhaust gas recirculation (EGR) valve
  • Blocked EGR passages
  • Misfire monitor neutral profile correction has not been relearned since the last mechanical repair
Diagnostic Aids:  One or more EGR passages may be blocked or partially blocked.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST HD: MISFIRE DETECTION MONITOR .