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Home >> Mazda >> 2006 >> 5 Sport, 2.3 L, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P2096 >> Notes
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DTC P2096: Notes

DTC P2096 [L3] CHART

DTC P2096 Target A/F feedback system too lean
DETECTION CONDITION 
  • The PCM monitors the target A/F fuel trim when under the target A/F feedback control. If the fuel trim is more than the specification, the PCM determines that the target A/F feedback system is too lean.
Monitoring condition 
  • Rear HO2S voltage is above 0.1 V 

    • Diagnostic support note 

  • This is a continuous monitor (Fuel system).
  • 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 
  • Leakage exhaust gas
  • Rear HO2S malfunction
  • IAT sensor malfunction
  • ECT sensor malfunction
  • Air suction in intake air system
  • Front HO2S malfunction
  • MAF sensor malfunction
  • Insufficient fuel line pressure
  • Fuel pump unit malfunction
  • Leakage fuel
  • Improper operation ignition system
  • Insufficient engine compression
  • Fuel injector malfunction
  • PCM malfunction
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