DTC P0133 Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1): Description
HINT:
Sensor 1 refers to the sensor mounted in front of the Three-Way Catalytic Converter (TWC) and located near the engine assembly.
Refer to DTC P0130 (see
).
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| P0133 |
- While idling with warm engine, response time for voltage output of Heated Oxygen (HO2) sensor to change from rich to lean or from lean to rich is 0.9 seconds or more (2 trip detection logic)
- While idling, response time of HO2 sensor output voltage in 1 rich-lean cycle is 9 seconds or more (2 trip detection logic)
|
- Open or short in Heated Oxygen (HO2) sensor (bank 1 sensor 1) circuit
- HO2 sensor (bank 1 sensor 1)
- HO2 sensor heater (bank 1 sensor 1)
- EFI relay
- Air induction system
- Fuel pressure
- Injector
- ECM
|