Air/ Fuel Guage

[Azman]

Hey guys,

Which Air fuel ratio guage are some of you guys using?
Thinking of fitting one whilst the car is off the road to aid in getting it running better whence it returns!!!!

Also how are these little blighters plumberd in? Via the ecu???

Cheers
Aaron

[s2_bo]

Plumed in straight to the lambda probe conection. (you can feed a wire via the fuse box)
Im using a Auto Gauge one. Far from Essential imo, make sure you plum it in via a switch so that you can turn it off when its doing your head in

[Jamo]

Personally i think they are ***** unless your using a wideband sensor

[martinjs]

I agree with Jamo, get an egt guage instead.

[Jon441cc]

What is the advantage of sensing the egt's on each of the exhaust manifold runners ?

Is it basically safe guarding when tuning a high output motor or are they there for more accurate tunability?

[martinjs]

You'll be able to see if one or more cylinder is running hotter/leaner than the others, if you have a poor flowing aftermarket inlet manifold for instance.

[Azman]

Something like this then????

http://cgi.ebay.co.uk/VEMS-Wideband-...QQcmdZViewItem

[s2dude]

Something like this then????

http://cgi.ebay.co.uk/VEMS-Wideband-...QQcmdZViewItem

Yeah....
Like Jamo says....
it has to be wideband to be worth anything at all...

irrc Narrowbadn can only accurately detect stoich.....wideband can detect all AFR's

John441....You only really need one EGT sensor IMHO.....maybe for racing you need ones on each runner but your talking big money to get all the sensors and a gauge that can switch between them for little gain IMHO for a street car....

[Jamo]

Yeah....
Like Jamo says....
it has to be wideband to be worth anything at all...

irrc Narrowbadn can only accurately detect stoich.....wideband can detect all AFR's

..

Bingo! basically narrow is like an on off switch

[porkkis]

Narrow is a joke really. 30's technology. Get the WB.

[Azman]

okay dokay then to fit that guage would take a hole put in the downpipe for another probe! Yes or no? COuld it replace the existing one???

[reval]

I´ll use VEMS WB02 and EGT also - itś the only way to get true information about A/F mixture and exhaust g temp.
This Narrowband Lambda must stay there - it gives the information for ECU.
WB Labda must be installed between 40 - 60 cm from turbo.

[Jamo]

okay dokay then to fit that guage would take a hole put in the downpipe for another probe! Yes or no? COuld it replace the existing one???

If you have a standard downpipe theres already a hole taped into it for an extra probe

[Azman]

Cool must have a butchers then whilst I have the car in bits!!!!
Cheers Chaps (god the credit card is gonna take a battering over the next few months unless I get a chance to mugg santa!!)