P2097

DTC P2096 / P2097: Post Catalyst Fuel Trim System Too Lean / Too Rich (Sensor-2, Bank-1)

System And Wiring Diagram:

System And Wiring Diagram

DTC Detecting Condition And Trouble Area:

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out by 2 persons, a driver and a tester, on a level road.

NOTE:
Check to make sure that following conditions are satisfied when using this "DTC Confirmation Procedure".
- The following DTCs are not detected: Fuel system, A/F sensor, A/F sensor heater, HO2S sensor, HO2S sensor heater and MAF sensor, IAT sensor, barometric pressure sensor, ECT sensor, VSS, CMP sensor, CKP sensor.

1. With ignition switch turned OFF, connect scan tool.
2. Turn ON ignition switch and clear DTC using scan tool.
3. Start engine and warm up to normal operating temperature.
4. Drive vehicle at 45 mph (70 km/h) or higher. (engine speed: 1500 - 3000 r/min.)
5. Keep above vehicle speed for 4 min. or more. (Throttle valve opening is kept constant in this step.)
6. Check if DTC and pending DTC exist by using scan tool. If not, check if oxygen sensor monitoring test has been completed by using scan tool. If not in both of above checks (i.e., no DTC and pending DTC and oxygen sensor monitoring test not completed), check vehicle condition (environmental) and repeat Step 3) through 6).

Step 1-4 (Continued):

Step 4 (Continued)-5:

Step 6-9 (Continued):

Step 9 (Continued):

DTC Troubleshooting

NOTE: Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to Precautions for DTC Troubleshooting.