Okay today while i was searching through a frends stuff i happened to find a a/f gauge. Whats weird is that there is no white wire for the o2. There is a power and ground, then there is a green and orange wire. Anyone know how these a//f gauges are hooked up?

 

who makes the gauge? it might be wired for using a sending unit. alot of widebands require that you use their sending unit which enables you to datalog and recieve auxillary imputs, etc.

 

Iono the brand but i see the writing jdm sport inside the gauge.

 

do you have a picture? Ive never heard of that brand.

 

sounds like a narrowband gauge. orange is probably illumination (ex: gauges light up with headlights on) and green is probably signal so you would tap that into the ecu signal.

 

Would you happen to know which one is the ecu signal for a gsr?

 

useless light show

 

i don't get it theres only wires to the signal therefore how would it read the oxygen?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chee_dog &raquo;</TD></TR><TR><TD CLASS="quote">i don't get it theres only wires to the signal therefore how would it read the oxygen?</TD></TR></TABLE>

your gonna have to explain what you dont understand about it

 

so it doesn't wire up to the o2 it only wires up to the signal? would it work with my teg if its narrowband?

 

should be d14

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chee_dog &raquo;</TD></TR><TR><TD CLASS="quote">so it doesn't wire up to the o2 it only wires up to the signal? would it work with my teg if its narrowband?</TD></TR></TABLE>

yes, your o2 signal runs to your ecu. the signal will be removed from the ecu run through the meter then out the meter to the ecu. if you dont have a wide band o2 its useless to hook it up.

 

while it may be useless it would still work. you would want to splice into the signal wire not cut it completely. then you get a fun light show of bouncing lights. green at wot, red when off the gas. have fun

 

at least it gives you idea whether you'r running reach or lean. although that's the ability limit of any narrow band. plus it looks cool

there should be some kind of mark on the back of the gauge it self. or if you bought it new, maybe you should read the instruction manual

 

hell, it want stay still enough for you to know if its lean or rich...