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Home >> Scion >> 2008 >> tC Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> 2AZ-FE Engine Control System >> SFI System >> DTC P2A00: A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) >> Description

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 TROUBLE DETECTION CHART

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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