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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 condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7°C.

- 3 min since engine started. Engine speed 1300-2200 rpm. Load 250-500 mg/comb. Closed loop is active and stable. Air mass per combustion stable. Purge active. Coolant temperature above 70°C. When all the conditions are fulfilled, the number of combustions during 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: (For more information, see Fault handling III, other emission-related components and functions .)


- 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.


For more information, see Menu "Read Values" .

Note

The 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.