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Rear o2 sensor

Posted: Tue Apr 02, 2019 5:48 pm
by Scooby
Anyone know the best way to remove the rear sensor from an early 24v.

Re: Rear o2 sensor

Posted: Tue Apr 02, 2019 5:55 pm
by mojo98
Not done a early one, but I would have thought it would be same as a late one,
I use a socket designed to remove o2 sensor, and get from below and then struggle to unclip it (small hands) required :D

Re: Rear o2 sensor

Posted: Tue Apr 02, 2019 7:02 pm
by mikenali
I managed with a spanner. But had to get the car on ramps, and go from underneath. Can't remember if I removed the crossmember for better access.

Re: Rear o2 sensor

Posted: Tue Apr 02, 2019 7:27 pm
by mojo98
mikenali wrote:
Tue Apr 02, 2019 7:02 pm
I managed with a spanner. But had to get the car on ramps, and go from underneath. Can't remember if I removed the crossmember for better access.
oh yes remove the crossmember :D

Re: Rear o2 sensor

Posted: Tue Apr 02, 2019 8:11 pm
by jrh
I know great store is made of these units working BUT mine were never changed ( despite being U/S ) for 19 years.
Fuel consumption was generally around 38mpg , more if driven carefully.
The ECU provides an optimum input in the event of 'no input' so no need to get too worried about those codes.

Re: Rear o2 sensor

Posted: Wed Apr 03, 2019 7:56 am
by Scooby
Early and late are in different places. Later ones can be accessed easily from the wheel arch but early ones are right at the back.
I already have the necessary socket but can't get a ratchet on it. I'll try removing the cross member.

Re: Rear o2 sensor

Posted: Wed Apr 10, 2019 9:57 pm
by humph
I use a 22mm ring spanner, I think it’s 22mm. It is cut in half, disconnect the plug, working from the top, place ring spanner on O2 sensor, then I have a piece of pipe flattened at one end, place this end against the end of the spanner and tap with a hammer. 5 minute job.