Mazda CX-5 Forums

Technical Section => Engine/Transmission/Powertrain/Exhaust => Topic started by: scudder on August 06, 2021, 07:42:21 pm

Title: Location of 02 sensor
Post by: scudder on August 06, 2021, 07:42:21 pm

Hi
Could anyone point out the location of 02 sensor 1 bank 1 on my 2012 plate 2.2d need to check the wiring as have code come up P0133

Thanks Andy

Title: Re: Location of 02 sensor
Post by: Gbuss666 on September 06, 2021, 08:59:21 pm

Hi, bank 1 should be exhaust side. I had my turbo/DPF etc all off earlier in the year. There is what I believe is an O2 sensor on the top of the DPF. You can see it if you look in from the drivers side, down at an angle. It doesn’t come out very easily!

Title: Re: Location of 02 sensor
Post by: Gbuss666 on September 07, 2021, 09:45:57 am

Oh, and there’s an exhaust sensor that can throw up all sorts of error codes. Remove the engine cover (the plastic one that just pulls off) then there’s a bit of crappy looking silver heat shield at the rear of the engine that just lifts up. The sensor is under that.