Hi guys,

 

so ive very recently bought my 1.6 petrol focus 05 reg.

 

an engine management light came on and I've hooked it up to a obd2 reader that throws out fault code P0156. A quick lookup shows this to be a faulty sensor on bank 2 sensor 2. I'm led to believe this is the o2 sensor.

the thing I'm confused about is that surely being a 4 pot it only has one bank? Does anyone have an exhaust diagram of where this would be and a part number?

 

any help is massively appreciated 

There are two O2 sensors in the system and if I remember right sensor two is the 'post-cat'. (Someone will correct me if I'm wrong)

Yea I did think so but only one bank surely? 

 

So of the two which does it relate to? Post cat? I need to get a Haynes manual really

6 minutes ago, Scotty12347 said:

Yea I did think so but only one bank surely? 

 

So of the two which does it relate to? Post cat? I need to get a Haynes manual really

Give me 5 minutes and I'll photograph the Haynes page

Sensor 2 is on the front section of the exhaust under the car after the cat 

The one at 5.3b then. I'll nip into ford and double check and get the part.

 

thanks very much russ 👍🏼👍🏼👍🏼