air/fuel guage problems

[silversaabowner]

just installed a combo boost/airfuel guage from glowshift. boost guage and all lighting works but the air fuel wont read????? the guage is for a narrow band and just wanted to make sure thats what saabs run stock and not a wideband. I feel like a dumb a** askin but couldn't find it on any other threads.

[tomipee]

Well, it is same does the narrow band work, or doesnt it, its useless. You need a wideband to get some real info.

Well, does your gauge come with lambda, or do you use your old one? Best is to have 2 lambdas on the pipe, one for the ecu on other for your gauge. Woldnt rather to do that for an narrowband. Or i maybe you steal the signal for your ecus lambda to your gauge?

[grkguy89]

box up that gauge and send it back lol
narrowband is virtually useless
the only thing it does is tell you if the O2 sensor is working.

[silversaabowner]

it also tells you if its runing lean, optimal, or rich. no it doesn't tell me the exact ratio but all i need to know is if its runing the way its suppose to be and if it starts to lean out to much i can back off so i don't melt things. this is a dd not a race car. maybe later on down the road when i plan on putting real power to the wheels(600+) then i'll worry about the specifics.

[kaw550]

Not exactly what you were looking for but here is a link I used on another project.
http://www.jetlink.net/~okayfine/su/airfuel.html

[grkguy89]

Originally Posted by silversaabowner

it also tells you if its runing lean, optimal, or rich. no it doesn't tell me the exact ratio but all i need to know is if its runing the way its suppose to be and if it starts to lean out to much i can back off so i don't melt things. this is a dd not a race car. maybe later on down the road when i plan on putting real power to the wheels(600+) then i'll worry about the specifics.

hardly... it doesnt tell you if it's running the way it's supposed to
the moment you hit the throttle the gauge will show rich (in other words more rich than 14.7:1)
it wont say how much though, so you might still be too lean
and when you come off the throttle and get into over-run then the gauge will show lean

it only tells you if the O2 sensor is working.
these narrowband gauges do work great on "analog" cars. but with a "digital" car like yours, you will benefit much more off a wideband

EDIT: If you're car is not running the way it's supposed to then it will most likely though a CEL with a code.
Which further exemplifies why I think you should send it back and get your money back. Im just trying to help as I've been there. I bought a narrowband and a week later I sent it back and sourced a Wideband gauge

[96Turbo]

Originally Posted by grkguy89

hardly... it doesnt tell you if it's running the way it's supposed to
the moment you hit the throttle the gauge will show rich (in other words more rich than 14.7:1)
it wont say how much though, so you might still be too lean
and when you come off the throttle and get into over-run then the gauge will show lean

it only tells you if the O2 sensor is working.

^^yep, narrow band is worthless for engine tuning. although it might impress your friends

[grkguy89]

just realized this thread is in the wrong section... moved to it's proper place