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. |
Disassembly
1. Flatten the tab of the lock nut.2. Using ST1, ST2 and ST3, fix at the spline portion of drive pinion shaft to remove the lock nut.ST1 499787500ADAPTERST2 499787700WRENCHST3 498937110HOLDER3. Remove the drive pinion shaft from the drive pinion retainer.4. Using the round bar with diameter ...