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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  (See ).

DTC TROUBLE DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
P2A00 Calculated value of air-fuel ratio (A/F) sensor response rate deterioration level less than threshold
(2 trip detection logic)
  • 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
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