where is the best place to get the above from please gents?

I have heard that Bosch do one, does anyone know the part number

 

Wide band Lambda sensors are meant to be used with either a stand alone set up like the Techedge or Innovate, or used with an aftermarket ecu that can use the input. A standard ECU won't use the output from a WB due to the differences in voltage scale.

What are you going to use it for??

 

tbh, all i wanted was to get my AFR gauge to work properly and i have been told that this was the best way to do it, i guess that wasn't quite right?
It does work but sweeps the full scale unless on WOT and on a 100 mph cruise it 's like it has been turned off i.e it reads very very lean!!

 

Somebody has given you bum information. Like Jim says above the standard Subaru comes out the factory with a narrow band Lambda sensor. This communicates with the ECU to control fuelling when running in closed loop. You cannot run a wideband in place of the narrow band for that purpose.
There are 3 possibilities. Either your narrow band Lambda sensor needs replacing because it is goosed. Your AFRs are seriously wrong. Lastly the guage is not working as it should.
Personally I would replace the Lambda sensor as the first step. These are available from Subaru dealers, Bob Rawle Developments (BRD), Roger Clark Motorsport etc.
When you get your engine back together it would also be worth getting someone with a wideband to check your AFRs as running weak could melt a piston and running rich will result in bore wash which is a bad thing.

I buy wideband Bosch sensors from the US for around $80 plus shipping plus tax and am about to put in another order. If anybody else has a requirement we can share the transport costs.
harveysmith1@btopenworld.com

 

On cruise the car is in closed loop so will pull fuel and run at stoich which is at the lower end of the scale, when you boot it the fuelling goes open loop and just uses the sir flow into the engine along with manifold pressure and will richen up as boost increases as more air is going in, so more fuel required to stop the engine going pop and to produce more power.

 

Ok, i will look into getting a new lambda sensor when it all goes back together. Is there a way of testing these sensors by the way (just out of interest?)

 

If there is, other than how it runs in the car, I do not know but I am sure Bob Rawle will know. I would guess you read the voltages from weak to rich but how to do in practice??????????????/

 

ok mate no probs, just me being inquisitve as usuall, you have mail btw