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Home >> Hyundai >> 2007 >> Tiburon GS, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G4GC-GSL 2.0L) >> DTC Troubleshooting Procedures >> DTC P0134 Ho2S Circuit No: Activity Detected (Bank 1/Sensor 1) >> DTC Detecting Condition
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DTC P0134 Ho2S Circuit No: Activity Detected (Bank 1/Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
Case 1) DTC Strategy
  • Signal plausibility during fuel cut off
  • Related fuse blown or missing
  • Contact resistance in connectors
  • HO2S contamination
Enable Conditions
  • Sensor preheating and full heating phases finished
  • Fuel Cut Off active
  • Integrated Mass Air Flow > 16g
  • Fuel Cut Off phase
  • No relevant failure
  • Battery voltage > 10V
Threshold Value
  • Voltage with fuel cut off > 0.1V
Diagnostic Time
  • 5 Sec
Case 2) DTC Strategy
  • Signal stroke plausibility
Enable Conditions
  • Sensor preheating and full heating phases finished
  • Signal stroke valid (5 P-jump after Lambda regulation activation)
  • Lambda controller is not on the limit
  • Lean/rich cycle time < 2.5 sec
  • No relevant failure
  • Battery voltage > 10V
Threshold Value
  • Sensor voltage < 0.25V
Diagnostic Time
  • 2 min
Mil On Condition
  • 2 Driving Cycles