lambda sensor

[boattinker]

Hi i have a faulty lambda sensor on my 2000 mk2 vvti  obd reader says o2 sensor heater circuit bank 2 sensor 2..so is that before or after the cat ? and where do i need to look to find it?

  any help most welcome 

[Gower Boy]

Boattinker, hopefully this will help, it can be confusing as certain people explain it differently, but when mine went faulty last year, this worked a treat

[boattinker]

Cheers Gower Boy... i guess sensor 1 and sensor 2 are the same lambda sensor as in length and thread 

[Grumpy stumpy]

Thread yes, cable length may be different, if you buy a replacement denso one then it should come with the correct plug and length, just disconnect and unscrew and refit, proper lamba sockets with slot in makes the job easier plus unscrews easier when hot but watch your hands. 

[IanML]

This site may help:

Link

[boattinker]

Cheers all for the advice sensor turned up today from autodoc