Air/fuel Ratio Guage

how do i install a air/fuel guage on my 2.4L ? do i just run a new oxygen sensor and then run the wires to the guage how to i got about wiring it?

[Redog]

Purple wire comming from the 02 sensor. Tap into that

[2fst4u]

there is a purple wire in the loom that comes off of your upstream O2 sensor. just tap into that for your signal.

[BlackJack]

hmm.....if you just want some pretty blinky lights that look cool, then tap it into your existing O2 sensor wire.

If you want an A/F that actually works, then you need to get a wideband O2 sensor (like Bosch for example) from this link Innovate Motor Sports and do it right.

wht do you mean everyone says to tap into the purple wire. will it not give me an acurate reading?

[2fst4u]

no, you will be doing the right thing with the purple wire, he's just recommending a wideband air/fuel gauge to tune off of. unless you are going with forced induction or something, the pretty blinking gauge works fine.

where is the O2 sensor?

[2fst4u]

what engine do you have? it's going to be located on your exhaust manifold collector. it is two wires connected to what looks almost like a spark plug. follow the wires up to the loom, and then pull the loom back until you find the purple wire.