P1163

DTC P1163: A/F Sensor (Sensor 1) Slow Response-'02-03 M/T models and CVT model

NOTE: If DTC P1162 is stored at the same time as DTC P1163, troubleshoot DTC P1162 first, then recheck for DTC P1163.

1. Reset the ECM.
2. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on.
3. Test-drive under following conditions.
- 55 mph (89 km/h) steady speed
- A/T in D position (M/T in 5th gear)
- Until readiness code or Temporary DTC P1163 comes on

4. Check for a Temporary DTC with the scan tool.

Is Temporary DTC P1163 indicated?

YES - Replace the A/F sensor (Sensor 1).

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the A/F Sensor (Sensor 1) and the ECM.