145 - MiTo   1.4 16v TJet   Preheating resistance 1 below catal.   P1141   
 

 

 

 

Test results
 

1

  

COMPONENT CONCERNED

  

ELECTRICAL CONNECTIONS CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Connections on oxygen sensor and engine management control unit

  

Check for loose electrical connections at the sensor connector and at the engine management control unit.

  

Go to Step 2

  

Presence of loose electrical connections.

  

Restore the correct continuity for the wiring.
 

2

  

COMPONENT CONCERNED

  

WIRING CONTINUITY CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Oxygen sensor wiring

  

Check for breaks in the wiring continuity caused by oxidised or corroded terminals.

  

Go to Step 3

  

Breaks in the wiring continuity.

  

Restore the correct continuity for the wiring.
 

3

  

COMPONENT CONCERNED

  

WIRING INSULATION CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Oxygen sensor wiring

  

Check the condition of the wiring insulation

  

Go to Step 4

  

Wiring insulation faulty.

  

Restore correct wiring insulation.
 

4

  

COMPONENT CONCERNED

  

OXYGEN SENSOR OPERATION CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Oxygen sensor

  

Check that the oxygen sensor is working properly

  

End of diagnosis

  

oxygen sensor not working correctly.

  

Replace the oxygen sensor

 Op. 1080B94 FRONT LAMBDA SENSOR TO WITH CATALYTIC CONVERTER - R.R