FixVault

DTC Information And Inspection: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Characteristic Monitoring
  1. Poor connector connection
  2. Faulty upstream O2 sensor
  3. Filter clogging of fuel pump
Enable Condition
  • Air-fuel ratio control activated
    • Tip temperature measured is over 720°C (1328°F)
    • Heating duration over 70 seconds
  • Model lambda value is between 0.982 and 1.018
  • Fuel level control value limit reached
  • Integrated air flow more than 50g
  • Stabilization condition
    • Difference between engine speed and filtered engine speed is less than 15 RPM
    • Difference between the air flow and the filtered air flow is less than 20mg/stk
    • Difference between torque and filtered torque is less than 15 Nm
Threshold Value
  • Difference between the measured lambda sensor value and the filtered lambda sensor value is more than 1.15
Diagnostic Time
  • 10 seconds
MIL ON Condition
  • 2 driving cycles