If the Long Term Fuel Trim(Multiplicative) is higher than the specified value, the PCM sets DTC P2191.
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 |
•
Coolant temperature is higher than 80.3°C
•
Intake air temperature is lower than 80.3°C
•
Throttle angle is lower than 60%
•
Lambda feed back control condition - active
•
Purge valve control duty = 0%
•
No MAP sensor error
•
No purge valve error
•
No WTS error
•
Engine speed is lower than 920rpm
•
Air mass is lower than 24kg/h | |
Threshold Value |
•
Long Term Fuel Trim (multiplicative) greater than 1.24 | |
Diagnostic Time |
•
10 sec | |
MIL On Condition |
•
3 Driving Cycles |
