DTC Troubleshooting: P0133 (61-1)
|DTC P0133 (61-1):|| Primary HO2S (Sensor 1) Slow Response|
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.
|2.||Start the engine. Hold the engine at 3,000 rpm (min-1) with no load (in Park or neutral) until the radiator fan comes on.|
|3.||Test-drive under the following conditions:|
- 89 km/h (55 mph) steady speed
- A/T in D position (M/T in 5th gear)
- 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).n
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the primary HO2S (Sensor 1) and the ECM/ PCM.n