General Information: DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy	Monitor the fuel trim value	Air leakage Improper fuel pressure PCV valve stuck Clogging of injector
Enable Conditions	Engine warm-up sufficiently Drive at a steady speed over 5 minutes (Vehicle speed ≤ 130 km/h) 60°C (140°F) ≤ Engine coolant temperature ≤ 115°C (239°F) No disabling faults (DTCs related to HO2S, purge valve, catalyst)
Threshold value	Average of short term fuel trim > 0.8 and Average of long term fuel trim > 1.2
Diagnosis Time	Continuous
MIL On Condition	2 Drive Cycles