ECM/PCM sets DTC P2191 if ECM/PCM monitors and detects fuel adaptation value is higher than specifications while vehicle is not in idle condition.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Multiplicative Long Term FT upper limit reached | 1. Air leakage 2. Improper fuel pressure 3. PCV valve stuck 4. Clogging of injector |
Enable Conditions |
•
55% > Torque > 12.3%
•
Engine speed > 500rpm
•
ECT > 65℃
•
IAT < 80℃
•
Closed loop fuel control "ON"
•
Canister purge control "OFF" | |
Threshold Value |
•
Fuel adaptive value of Multiplicative fuel adaption range is higher than 1.25 | |
Diagnostic Time |
•
30 sec. | |
MIL On Condition |
•
2 Driving Cycle |
