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Home >> Suzuki >> 2006 >> XL-7 Premium, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P0172 / P0175: System Too Rich >> DTC Detecting Condition and Trouble Area
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DTC Detecting Condition and Trouble Area

DTC DETECTING CONDITION AND TROUBLE AREA CHART

DTC detecting condition Trouble area
When running after engine warmed (2 driving cycle detection logic). Short term fuel trim less than -11% or long term fuel trim less than - 11% and total trim less than -30% is detected.
  • Fuel trim too rich
  • Vacuum leaks (air inhaling)
  • Exhaust gas leakage
  • Fuel pressure out of specification
  • Heated oxygen sensor malfunction
  • HO2S-1 or its circuit
  • MAF sensor poor performance
  • ECT sensor poor performance
  • Fuel level sensor.
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