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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 590 (ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (AJ])DTC P050BNOTES
2008 Mazda 6 s Sport, 4D Hatchback, Standard

DTC P050B: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different car, the 2007 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC P050B [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P050B Cold start ignition timing performance
DETECTION CONDITION 
  • The PCM monitors actual ignition timing while electronic spark advance control fast idle correction operating. If the ignition timing is out of specified range, the PCM determines that the ignition timing at cold condition has performance problem.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
  • PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Electronic throttle control system malfunction
  • Throttle valve stuck or blockage
  • Air suction in intake-air system
  • PCM malfunction
RENDER: 1.0x

NO RELATED

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