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Home >> Mazda >> 2007 >> CX-9 Touring, 3.5 C, AWD >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System MZI-3.5) >> DTC P050E >> Notes
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DTC P050E: Notes

DTC P050E (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P050E Cold start engine exhaust temperature out of range
DETECTION CONDITION 
  • The PCM calculates the actual catalyst warm up temperature during a cold start. The PCM then compares the actual temperature to the expected catalyst temperature model. The difference between the actual and expected temperatures is a ratio. When this ratio exceeds the calibrated value this DTC is set and the malfunction indicator lamp (MIL) illuminates.
POSSIBLE CAUSE 
  • Intake air restriction
  • Exhaust restriction
  • Mechanical concern with the engine
  • Throttle body malfunction
  • Vacuum leakage
  • PCM malfunction