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DTC P1163: A/F Sensor (Sensor 1) Slow Response (2000-2001 M/T models)

NOTE:
  • If DTC P1162, P1168, and/or P1169 are stored at the same time as DTC P1163, troubleshoot those DTCs first, then recheck for DTC P1163.
  • Before you troubleshoot, record all freeze data and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
  1. Reset the ECM with the HDS (see ECM RESET ).
  2. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
  3. Test-drive at 40-55 mph (64-88 km/h) for about 2 minutes. Try to keep the engine speed between 1,500 to 2,500 rpm. Then decelerate for at least 3 seconds with the throttle completely closed.
  4. Check for Temporary DTCs or DTCs with the HDS.

    Is DTC P1163 indicated? 

    1. YES  - Replace the A/F sensor (Sensor 1) (see A/F SENSOR REPLACEMENT .
    2. NO  - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor and the ECM.
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