MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: Frank Rabbets on May 27, 2021, 13:42

Title: Post cat (bottom) sensor change.
Post by: Frank Rabbets on May 27, 2021, 13:42
I have this little job to do and need a tip on tracing the wire from sensor to it's plug to the loom. Looking from engine side it looks like it comes from the sensor and disappears behind the wheel arch splash guard. Do I have to take the splash guard out to trace the wire?
Tried search on here but failed.

Thanks in advance
Frank
Title: Re: Post cat (bottom) sensor change.
Post by: jonbill on May 27, 2021, 13:48
from memory, the plug is accessible up by the left rear light
Title: Re: Post cat (bottom) sensor change.
Post by: Frank Rabbets on May 27, 2021, 13:49
Thanks, cable looks like is tied/fixed behind the splash guard though?
Title: Re: Post cat (bottom) sensor change.
Post by: Carolyn on May 27, 2021, 13:54
Quote from: jonbill on May 27, 2021, 13:48from memory, the plug is accessible up by the left rear light

Correct.
Title: Re: Post cat (bottom) sensor change.
Post by: tricky1138 on May 27, 2021, 13:58
Quote from: Frank Rabbets on May 27, 2021, 13:49Thanks, cable looks like is tied/fixed behind the splash guard though?

Think its fixed to the rear crash bar.
Title: Re: Post cat (bottom) sensor change.
Post by: Joesson on May 27, 2021, 16:34
Iirc I removed the near side rear light to get access to release a clip that was holding that sensor cable.
Title: Re: Post cat (bottom) sensor change.
Post by: normanh on May 27, 2021, 20:28
Pops the clip off they are simply push fit but tight, you get new clips fitted to the lead with the sensor supplied by www.sparkplugs.co.uk. Cut the cable off to remove and use a 22mm deep socked and bar, to reinstall use a sensor socket light pressure as per changing a spark plug. No paste on the threads required as it comes pre-coated. A good squirt of penetrating oil can hep removing the old one. Access is by removing the nearside rear light a very easy job , when removed it all becomes clear, the socket is attached to the coolant header tank.

Best tip I had was always use a 6 point socket , you get a better grip on the sensor!

Just completed the change here and learnt a lot of tips from my son