M/T Model

DTC P0133: Slow Response in Primary HO2S (Sensor 1) Circuit - M/T Model

NOTE: If DTC P0131, P0132 and/or P0135 are stored at the same time as DTC P0133, troubleshoot those DTCs first, then recheck for DTC P0133.

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 the following conditions:
- 55 mph (89 km/h) steady speed
- Transmission in 6th position
- Until readiness code or Temporary DTC P0133 comes on

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

Is Temporary DTC P0133 indicated?

YES - Replace the Primary HO2S (Sensor 1).

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at C102 (located at the left side of the engine compartment), the Primary HO2S (Sensor 1) and the ECM.