Lambda Probe Fault

[Yumann]

3 Faults Found:
16804 - Catalyst System; Bank 1: Efficiency Below Threshold
P0420 - 35-10 - - - Intermittent
17524 - Oxygen (Lambda) Sensor Heating; B1 S1: Open Circuit
P1116 - 35-00 - -
17511 - Oxygen (Lambda) Sensor Heating; B1 S1: Performance too Low
P1103 - 35-00 - -


Unsure what this means, but I am pretty sure it is a dud lambda probe. However, which lambda probe would it be pre or post cat?


Cheers

 

[Myki da Pyki]

Ive also got lambda problems mate and ive been told Blank 1 is the pre cat and blank 2 is the after cat mate. All them codes are pointing to that sensor so should be alright after thats been replaced

 

[Big_daddy]

Yes its the pre sensor (One on the down pipe), if it stays open circuit, most of time its knackered and needs replacing