Thread: Rover V8 - O2 Sensors

2 would be best, If you are going to monitor them,, they must move up and down constantly, .01 to .09
The pic is from a NA system which uses AFTER cat sensors to check on cat performance, but the placing of the front two are correct--
installation must be vertical???


Just my 2 cents, but, the D2 O2 system is the total boss of the RV8, it cares nothing about your desired rate of acceleration,
it only cares about lamba/ fuel economy, you can ask for full power but the O2's will fight you all the way to the Open fuel table...
But if your name is BMW all you really care about is emissions and fuel economy...

What are you talking 14CUX or later?
If 14CUX I did a how to several years ago which I can PM to you.
It replicates the OEM system.
Regards PhilipA

Originally Posted by PhilipA

What are you talking 14CUX or later?
If 14CUX I did a how to several years ago which I can PM to you.
It replicates the OEM system.
Regards PhilipA

That was a great read!

Didn't you post it up somewhere?

DL

I cannot remember now as it was at least 10 years ago.
I do remember a forum member condensed it into a smaller Pdf which I think I still have.

Regards PhilipA

Pedro - thanks for that diagram - answers my specific questions - so on non cat there are two. Bugger already got one system but it cannot do a twin o2 sensor system - so more $$$ needed to get a new system.

Philip - no idea of ECU system at this stage - was going to go Megasquirt but that is a PITA, is over hyped and support is not good- will probably go a aftermarket system like an Adapttronoic as I have a local dealer and it is about the same cost as Megasquirt.

I need to get an exhaust system built and need to know where the o2 sensor bungs need to go.

Thanks

Garry

Originally Posted by 101RRS

Pedro - thanks for that diagram - answers my specific questions - so on non cat there are two. Bugger already got one system but it cannot do a twin o2 sensor system - so more $$$ needed to get a new system.

Philip - no idea of ECU system at this stage - was going to go Megasquirt but that is a PITA, is over hyped and support is not good- will probably go a aftermarket system like an Adapttronoic as I have a local dealer and it is about the same cost as Megasquirt.

I need to get an exhaust system built and need to know where the o2 sensor bungs need to go.

Thanks

Garry

Why not put one O2 sensor after the Y-pipe junction? Is it a temperature reason?

The 2 door I had for a while with the P76 race motor had one there in the 3" exhaust, but it wasn't connected to anything.

cheers, DL

I dunno whynot after the Y, ?? may well be a temp thing,, these things do have inbuilt heaters...

With only one sensor you may have one bank rich and the other lean , from for example an air leak.
Better practice to have 2 to control each bank individually.
Regards PhilipA