P0133

Test 1 - 5:

SYMPTOM
P0133-O2 SENSOR 1/1 SLOW RESPONSE

WHEN MONITORED
Start and drive vehicle greater than 20 MPH and less than 55 MPH. Throttle open for a minimum 120 seconds. Coolant Temp greater than 70°C (158°F) Catalytic Converter Temperature greater than 600°C (1112°F) EVAP Purge active.

SET CONDITION
The O2 sensor voltage switches only 11 times or less from lean to rich within 20 second during monitoring. Two Trip Fault.


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