Heater control circuit

[Joeld]

Afternoon,

 

Ive got a 57 plate 350, it's recently had a bank 1 O2 sensor 1 fault come on, that part has been replaced.

 

I've now got a H02S Heater control circuit low bank 1 sensor 1 with a code of P0031

 

Any help would be much apprchiated as I have no idea.. Not sure if it's related but on idle it's struggling to hold a normal amount of revs and drops down to around 500 and obviously feels a bit ropey..

 

Cheers

[ZMANALEX]

As your code P0031 would suggest, the issue is probably bank 1 sensor 1.

 

What brand did you replace it with ?

 

Alex.