What gauge have you got Alundra?

S12rob - Sorry its for my car

Swoosh ART one ;)

http://www.jdm-per4mance.com/product...roducts_id/134

So what lamda sensor does it run off?

If you are using a stock narrow band one it will only show 15.2-14.2:1

Event at full throttle, with boost?

No air or oil leak.

No Check ECU.

That's why i'd like something for running stoechiometric in full throttle+boost but solutions are hard to find.

Thanks 30psi ;)

I'm confused.

That gauge you have won't show the boost ratio's because its not a wideband lamda unit.

Why you said "wan't show"?

It's the same that you can see in the shop: http://www.jdm-per4mance.com/product...roducts_id/134

You can see the description on it.

I'll take a video to see what i said.

NO, wideband isn't needed for this meter, Yes i have a stock lambda sensor on my car; I'll some pics :nod

So you don't have lambda sensor on s12 from UK.

If it dont have a wideband lambda its almost useless.

What does it show on boost?

As I said, 14.4 14.5 area at idle go to 10 at full throttle.

Don't remember that car which have lambda sensor narrow are sufficent for stock engine management specially with MAF, it isn't so useless like our security dump security valve.

I'll take a video ;)

a narrow band sensor works completely different to a wideband. your gauge is lying to you

Alundra, what the guys are say is that the stock lambda sensor will be fine for you ECU and general running of the car, but when connected to the A/F meter it will give you a false reading.

you prolly are getting a reading on the gauge of 10 on boost, but that figure will be false.