O2 Sensor Or O2 Simulator?

[doberdog]

Hi all

bought a2000 is200 the other week.

The problem I'd she's had a decat and the treat o2 sensor removed, I'm guessing that means she's running on a set of default values and therefore that's whythe mpg is so bad.

The way I see it I have 2 options

1 get a new sensor, drill into the exhaust and somehow fit it

2 get an o2 simulator

The problem I can't get my head around is that option 1 should provide a proper reading , I think! But surely as an o2 simulator isn't actually reading the amount of oxygen in the emissions it must also just be sending a default value which may be no better then the factory one.

Any thoughts on the best way to go would be appreciated

[Ghosty]

i did some research on a previous car i had again an american style car a 3.0V6 honda accord coupe. I was going to de cat her and fitting a simulator was the best way to go about it. I think if you can understand what you are doing it is a great idea. They are very easy to fit you will need an o2 sensor as well but it doesn't have to be in the exhaust just connected to the and left hanging.

The main problem with these is getting your sensor to the correct value there is plenty of information on the american owners site and a guide of one being fitted to the US ES Leuxs/Toyota Camry.

[doberdog]

Cheers for that mate

I'll look a but more into it.

The thing is someone told me the rear sensor is not an o2 sensor but just there to make sure the cat is still there!?

[Ghosty]

if it is the rear sensor then that should be easier to get the correct value as all it does is check exhaust emissions after the cat to check cat health