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DTC P2A00 A/F Sensor Circuit Slow Response (Bank 1 Sensor 1): Description

HINT:

Sensor 1 refers to the sensor mounted in front of the Three-Way Catalytic Converter (TWC) and located near the engine assembly.

Refer to DTC P2195 .

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No.	DTC Detection Condition	Trouble Area
P2A00	Air-Fuel Ratio (A/F) sensor circuit slow response: Under conditions (a), (b) and (c), A/F sensor output voltage changing value below regular changing value in comparison with fuel trim changing value (2 trip detection logic): Warm engine Driving at engine speed of between 1,400 rpm and 3,200 rpm Vehicle speed between 37.5 mph and 75 mph (60 km/hand 120km/h)	Open or short in A/F sensor (sensor 1) circuit A/F sensor (sensor 1) A/F sensor heater (sensor 1) EFI relay A/F sensor heater and EFI relay circuits Air induction system Fuel pressure Injector PCV valve and hose PCV hose connection ECM