P0133

Tests 1 - 2:

Tests 3 - 7:

Test 8:

SYMPTOM
P0133 - 1/1 O2 SENSOR SLOW RESPONSE

WHEN MONITORED
With engine temperature greater than 63 °C (147 °F), after reaching vehicle speed of 16 km/h (10 mph), and throttle remaining open (off idle), for 2 minutes bring vehicle to a stop and allow engine to idle with transmission in drive (auto) or in neutral (manual).

SET CONDITION
The Oxygen Sensor Signal voltage is switching from below 0.27 volt to above 0.62 volt and back fewer times than required.

POSSIBLE CAUSES
- Engine mechanical problem
- 1/1 O2 sensor ground circuit high resistance
- 1/1 O2 sensor ground circuit poor connection
- 1/1 O2 sensor signal circuit high resistance
- 1/1 O2 sensor signal circuit poor connection
- 1/1 O2 Sensor slow response
- Exhaust leak
- 1/1 O2 sensor slow response does not reoccur