Rep Power: 805

i need help figuring out which wires do i connect to the gauge.....The wires that i did use was the purple and the purple with white stripe.....the gauge seem accurate at first then it slowly went towards the lean until the light faded out, so any help will be useful thanx

 
Rep Power: 1125

where are the wires you hooked into, there are a half dozen purple wires underteh dash in both my gm vehicles

 
Rep Power: 0

schematics man!

 
Rep Power: 815

To get an accurate reading, the purple wire must be spliced into the 02 sensor wire as close to the actual sensor as it can get. The instructions tell you splice before the stock GM plastic connector. (Where the 02 sensor wires connect to the pcm wire harness) Then the other two wires are just a switched 12v+, and a ground.

 
Rep Power: 805

thanks for the help.......what i did was traced both wires from the o2 sensor back to the ecm and i spliced it there.....i did use the schematics from the camaro repair book

 
Rep Power: 797

u are not suppose to connect it close to the o2 sensor that is bad, if u read the packet on the guage it says do not splice close to the o2 or to the o2 wire u are suppose to splice to the signal wire not the actualy wire. i spliced mine into the signal wire on the pcm, i think it was red pin # 8 take out your pcm unhook the red harness and see if the # 8 pin is purple im pretty sure that is the one i used

 
Rep Power: 815

Glad you got it figured out

 
Rep Power: 804

umm i did mine right about 3 inches up from the actual sensor. has worked great for over a year. you are supposed to do it close to the actual sensor. it may vary from gauge to gauge tho

 
Rep Power: 815

That's what I was trying to say too. Mine has been hooked up like that for over two years now and it has always been very accurate. But Maybe each set of instructions is different.

 
Rep Power: 797

yeah maybo mine are autometers so i dont kno about others

 
Rep Power: 1125

from what I've been reading it doesn't actually help anything