P0133

DTC P0133: A/F Sensor (Sensor 1) Slow Response (2004-2005 models)

NOTE:
- Information marked with an asterisk (*) applies to 2002-2003 models.
- Information marked with double asterisk (**) applies to 2004-2005 models.

1. Reset the ECM.
2. Start the engine. Hold the engine at 3,000 rpm without load (in neutral) until the radiator fan comes on.
3. Test-drive under these conditions:
- 55 mph (89 km/h) steady speed
- Transmission in 5th gear
- Until readiness code or Temporary DTC P1163* (P0133)** and/or P1163* (P0133)** comes on

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

Is Temporary DTC P1163* (P0133)** and/or P1163* (P0133)** indicated?

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

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