P0133

Test 1 - 5:

SYMPTOM
P0133 - O2 SENSOR 1/1 SLOW RESPONSE

WHEN MONITORED
Vehicle is started and driven between 20 and 55 mph with the Throttle open for a minimum of 120 seconds. Coolant greater than 70 °C (158 °F). Catalytic Converter Temp greater than 600 °C (1112 °F) and EVAP Purge is active.

SET CONDITION
The oxygen sensor signal voltage switches less than 16 times from lean to rich within 20 seconds during monitoring. Two Trip Fault.

POSSIBLE CAUSES
- Good trip equal to zero
- Exhaust leak
- O2 signal circuit
- O2 return circuit
- O2 sensor