95_TA_USMC

iTrader: (4)

i have the guage light ran into headlight switch, and since i have tru-duals i need a 3 way switch right? just wire a signal from both o2 sensors separately? i take the signal from the guage and run it to the center post of 3 way switch, and the other 2 posts go to the signal wires from the o2's right? well i did this and i have no reading... the guage is sittin on rich and i have no reading... and comments, or help is great, i tapped the purple/white stripe wire, and the purple, they are the high signal wires for the o2's..

RamAir95TA

iTrader: (2)

This sounds like an overall bad idea. Are you trying to narrow in a narrow-band gauge by splicing into the factory O2 wiring? That's a terrific way to mess up the resistance of the O2s.

Wicked94Z

iTrader: (26)

oh boy. whatever you're thinking of doing... just forget it.

95_TA_USMC

iTrader: (4)

it seems logical right?

RamAir95TA

iTrader: (2)

No. You're going to end up with a fancy light show that is useful for nothing that's going to mess up your short and long term fuel trims.

95_TA_USMC

iTrader: (4)

what do you think i can do then?
maybe tap into my hpipe, and bung a new o2 sensor there? accurate reading or not?

RamAir95TA

iTrader: (2)

Your factory O2s and wiring need to remain untouched and unmolested. If you want to look at your a/f ratio, you need a stand-alone wide-band O2 sensor and gauge.

Lonnies Performance

iTrader: (16)

Honestly, you should get your money back for the gauge.
It is basically a glorified toy.

If you want to know your air-fuel, then get a wideband.

95_TA_USMC

iTrader: (4)

any good suggestions? can i tap into the h pipe and get an accurate reading with the wideband?

Lonnies Performance

iTrader: (16)

You can tap into the pipe directly behind the collector of either header, but be aware that any header leak will have a large effect on the readings. Stay as close to the headers as possible, because heat is imperative to a good reading.