DTC DETECTING CONDITION: Detected when two consecutive driving cycles with fault occur. CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.
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 by checking “Cumulative value of time when λ changes from lean > rich” in comparison to “Time during which diagnosis is in progress”.
Judge as NG when the following conditions are established.
Time Needed for Diagnosis: 70000 ms Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles. 6. DIAGNOSTIC METHOD 2 Detect the malfunction by the cumulative value obtained from the amount of variation in λ change. Judge as NG when the following conditions are established.
Time Needed for Diagnosis: 70000 ms Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles. |
Inspection
Check the following items.• Check the oil pump for damage and wear.• Rotate the oil pump by hand, and check that it rotates smoothly.1. Measure the secondary pressure. Secondary Pressure (Line Pressure) Test > INSPECTION2. Remove the oil pan and oil strainer. Oil Pan and Strainer > REM ...