Needing help

[Bennys3]

I done the pcv delete and n275 delete last night and now have 2 fault codes they are:
p0036 ho2s bank 1 sensor heater circuit
p0141 02 sensor heater circuit malfunction bank 1 sensor 2

i don't understand what could have happened anyone shed some light?

thanks
benny

 

[<tuffty/>]

Lambda disconnected? fuse blown?

16420/P0036/000054 - Ross-Tech Wiki

16525/P0141/000321 - Ross-Tech Wiki

<tuffty/>

 

[Bennys3]

You sit really are brilliant thanks very much off too check fuses!

 

[Bennys3]

No blown fuses sadly

 

[<tuffty/>]

Cleared codes and they came back?

<tuffty/>

 

[Bennys3]

I cleared the codes last night and they came back this morning. Is there a lambda connector too the loom anywhere near the top of the engine or are they all underneath?

 

[<tuffty/>]

Did you check codes before doing the N249 bypass? these codes are for the post cat lambda...

Can't think of any reason why an N249 bypass would manifest into this but its a common fault for lambdas to do this...

<tuffty/>

 

[<tuffty/>]

...the wiring plug are under a plastic cover underneath the car on the drivers side... 2 x 10mm plastic nuts hold it on the the second lambda plus are clipped into it

<tuffty/>

 

[Bennys3]

There were no faults before the n249 bypass I split one of the pcv pipes hence the delete! Then started car after doing the pcv delete and had these codes