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H4SO (2.5L SOHC)

DTC P2097 POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1

1. OUTLINE OF DIAGNOSIS
Detect the malfunction of fuel system from the amount of sub feedback control.

Judge as NG when the sub feedback learning control is being performed and when the learning value goes to the rich side.

2. COMPONENT DESCRIPTION






3. ENABLE CONDITION

Enable Conditions:






4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at a constant speed of 50 - 100 km/h (31 - 62 MPH).

5. DIAGNOSTIC METHOD
Judge as NG when the continuous time of meeting the malfunction criteria below becomes 5 seconds or more. Judge as OK when the continuous time of not meeting the malfunction criteria below becomes 5 seconds or more.






Time Needed for Diagnosis: 5 seconds • 1 time

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

6. DTC CLEAR CONDITION
- When the OK idling cycle is completed 40 times in a row
- When "Clear Memory" is performed

7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
- When similar driving conditions are repeated 3 times and the result is OK.
- When "Clear Memory" is performed

8. FAIL SAFE
None

9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)