Hi, I hope someone can help. Both sensors have been changed but after a few days the EM light comes back on. The garage say they have never experienced this before and are suggesting it may be the Cat. Converter, which I would assume to be a costly item. As a last resort they are going to replace the sensors ( at their cost ), but I would be grateful for any advice anyone can offer.

Thanks. JimW

This is my 4th GS300 and the only one I have a problem with

Depending what year you have there are some good prices on here

http://www.cats-direct-shop.co.uk/lexus-ca...c-converter.php

There are four sensor on my SC430 and when one goes normally the other fail quite close by.
My model car has two pre cat and two post cat sensors
The web site Tiger fish has got is quite expensive try buying from the States as with shipping costs they are over half the price from cats direct.
Sorry TIGERFISH i know you are just helping, but today motor owners are getting hit with all sorts of cost.
I have not brought these into the country myself as i leave this to the garage, Lexus charge around £350 each sensor what a rip off.

Ian

No problem mate, I wasn't pointing him in the direction of the sensors on that site (as he has had them replaced and the garage are going to replace them again), it was the cat if he needed it