NOTE: For the diagnostic procedure, refer to DTC P014C. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P014C A/F / O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 1. OUTLINE OF DIAGNOSIS Detect the slow response of front oxygen (A/F) sensor. For diagnosis, detect the trouble by processing the λ waveform in normal driving without forcibly changing the target air fuel ratio. 2. COMPONENT DESCRIPTION
3. EXECUTION CONDITION
4. GENERAL DRIVING CYCLE Perform diagnosis only once in a city driving including normal acceleration and deceleration. 5. DIAGNOSTIC METHOD 1 Detect the malfunction depending on the average value of time necessary for λ to inverse the air fuel ratio from “Lean > Rich > Lean” to “Rich > Lean > Rich”. Judge as NG when the following conditions are established.
Time Needed for Diagnosis: 90000 ms Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles. 6. DIAGNOSTIC METHOD 2 Detect the malfunction by calculating the average amplitude of λ. Judge as NG when the following conditions are established.
Time Needed for Diagnosis: 90000 ms Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles. |
Component
1. FRONT EXHAUST PIPE(1)Front exhaust pipe (RH)(13)Bracket(25)Catalytic converter upper cover (LH)(2)Front catalytic converter (RH)(14)Protector(26)Front exhaust pipe upper cover (LH) (rear)(3)Rear catalytic converter (RH)(15)Front exhaust pipe cover (RH)(27)Front exhaust pipe lower cover (LH) (rear ...