O2 Sensors

joned · January 4, 2007

This morning I ran over something like a wheel arch fron a lorry on the motorway. It has snapped my downstream O2 sensor (the one after the cat). After limited research it looks like I have four options:-

1. Do nothing - no error lights are showing, will this damage the cats, or anything else?

2. Replace with Lexus part at £158 +VAT

3. Get part from US at roughly £58 + shipping

4. Buy universal generic from eBay at £15 and splice in according to the lextreme tutorial.

The car is a 95 LS400, I cannot understand the price difference if they are roughly the same component. Anyone any observations?

lutonmatt · January 4, 2007

if it was me i would go for the 15 quid one

the lexus one will last the longest and you would not have to chop any plugs around but its the price

i would not leave it as it may do damage later on

i have taken my ones off and the two cats for replacing the gearbox and i can tell you the plugs are not easy things to get to you have to take the front carpets up to unplug the to feed though the floor you have to lift the rear heating pipes up not pulling them hard and braking them like i did to one ( well it was stuck :D )

GoldfingerLS · January 5, 2007

if it was me i would go for the 15 quid one
the lexus one will last the longest and you would not have to chop any plugs around but its the price

i would not leave it as it may do damage later on

i have taken my ones off and the two cats for replacing the gearbox and i can tell you the plugs are not easy things to get to you have to take the front carpets up to unplug the to feed though the floor you have to lift the rear heating pipes up not pulling them hard and braking them like i did to one ( well it was stuck :D )

wow sounds like you are having lots of fun and games changing your gearbox... :o

lutonmatt · January 5, 2007

wow sounds like you are having lots of fun and games changing your gearbox...

it is a bit more of a job then i first thought but i should have it done in 4 hrs as thats the book time i think it want take long when i am in the mood

genius149 · January 7, 2007

There's quite a lengthy blurb about O2 sensors in the GS section including some links about where to get them cheaply and how to fit them. Don't know if the V8 will be easier or harder than the 6, I'll leave that answer to the more mechanically minded! :duh:

Here's the link: o2 linky

joned · January 7, 2007

if it was me i would go for the 15 quid one
the lexus one will last the longest and you would not have to chop any plugs around but its the price

i would not leave it as it may do damage later on

i have taken my ones off and the two cats for replacing the gearbox and i can tell you the plugs are not easy things to get to you have to take the front carpets up to unplug the to feed though the floor you have to lift the rear heating pipes up not pulling them hard and braking them like i did to one ( well it was stuck :D )

OK, for lack of time and foresight I bought a universal one from partco (unipart) at £47.

I spliced the wires underneath the car to avoid the problems lutonmatt experienced - and only time will tell how waterproof the joins are.

Oh.. The colours of the wires are all different as well, I think I connected them OK, but am yet to try and pull any codes - will repost when I do.