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P0133

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE.

P0133


O2S Circuit. Slow Response. Sensor 1.


Fault symptoms


• CHECK ENGINE.


On-Board Diagnostics

Type of diagnosis:


- Once per driving cycle. Interrupted when fault criteria fulfilled or OK reported. Restarts next driving cycle.


Enable criteria:


- General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperature must be above -70°C.

- Engine running 3 minutes. Engine speed 1300-2200 rpm. Load 250-500 mg/comb. Closed loop active and stable. Air mass per combustion stable. Purging active. Coolant temperature above 700C. When all criteria have been fulfilled, the number of combustions for 2 sensor transitions is counted.


Fault criteria:


- Number of combustions exceeds 95.


Dependents:


- P0115, P0116, P0117, P0118, P0119, P0131, P0132 and P0134.


System reaction to a fault:


- None.


OK report:


- Diagnosis performed once and fault criteria not fulfilled.


Fault handling: (See section Fault handling III, other emission-related components and functions for more information.)


- Type III.


Diagnostic help

Fault diagnosis concerns an internal fault in the sensor.

Functions in the diagnostic tool related to the fault:


• Diagnostic status for the diagnosis.


See also description of Menu "Read Values" for more information.

Note

Oxygen sensor receives reference oxygen from the surrounding air via the connecting cables. For this reason, electrical contact spray or grease must not be used on the oxygen sensor connector.