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DTC P2097 Post Catalyst Fuel Trim System Too Rich (Bank 1): DTC Detecting Condition

DTC P2097 DETECTING CONDITION TABLE

Item Detecting Condition Possible Cause
DTC Strategy Case 1)
  • Monitoring deviation of fuel trim control (Long term)
  • Air leakage in exhaust System
  • HO2S
  • TWC
Case 2)
  • Monitoring deviation of fueling control (Short term)
Enable Conditions Case 1)
  • Calculation of trim controller active
  • No relevant failure
Case 2)
  • Calculation of trim controller active
  • No relevant failure
  • Stable driving condition
Threshold Value Case 1)
  • Trim value at Limits (-0.028/+0.028) more than 60 sec.
Case 2)
  • Deviation at Limits (-0.26/+0.60) more than 10 ~ 30 sec.
Diagnostic Time Case 1)
  • 60 sec.
Case 2)
  • 30 sec.
MIL On Condition
  • 2 Driving Cycles
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