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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 623 (ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM])DTC P0133NOTES
2008 Mazda 6 s Sport, 4D Hatchback, Standard

DTC P0133: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0133 DETECTION & CONDITION POSSIBLE CAUSES

DTC P0133 Front HO2S circuit slow response
DETECTION CONDITION 
  • The PCM monitors the front HO2S output current and short term fuel trim (SHRTFT) when the following conditions are met. If the output current response is lower than that expected from the fuel trim, the PCM determines that the front HO2S circuit response is slow.

MONITORING CONDITION 
  • Front HO2S heater monitor: Completed
  • Fuel system loop status: Closed loop fuel control
  • Engine speed: 1,500-4,000 rpm 
  • LOAD: 21.7-64.7% 

Diagnostic support note 
  • This is an intermittent monitor (HO2S).
  • The MIL illuminates if the PCM detects the above malfunction 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 condition during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Purge solenoid valve malfunction
  • Looseness of front HO2S
  • Leakage exhaust gas
  • Front HO2S malfunction
  • Fuel line pressure malfunction
  • Leakage fuel
  • Fuel pump unit malfunction
  • AIR system malfunction
  • Leakage engine coolant
  • TP sensor malfunction
  • Eccentric shaft position sensor malfunction
  • PCM malfunction
RENDER: 1.0x

NO RELATED

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