Hi i just recently bought a air/fuel ratio gauge from autometer, and the instructions are there, but i dont know where to find the wires to tap into. If anyone knows please help.

 

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I dont know if this is what you are looking for, but heres a wiring diagram for the ECU. I hope it helps. http://www.roadraceengineering.com/e...-ecuwiring.htm

 

You're looking for the front 02 sensor wire; I think it's white, and I found it in the forum along with instructions on how to remove the ECU. It just takes a good diagram and careful counting of the wires.

 

ok where do i find the o2 sensor wire?

 

they are coming off of the ECU, under the glove box, if you look at the link, you can see the front 02 sensor listed and then splice into this.

 

You should return the guage and get an AEM or other based off a wideband system. All the narowband system does is make a neat light show in the guage. It is only accurate at idle. Sorry. Narrowband will only show rich/lean. That sucks and is not useful at all if you actually want to know your AF ratio at any given RPM/time.

 

Run a search cuz rhyzin printed out an ecu diagram.

 

ummm yea when you start reving it reads how rich/lean you are, plus i like it cause i know when to do another run when it rich's out from stoich.

 

does anyone have the Greddy electronic A/F hooked up? also, when installin the A/F O2 sensor, did anyone use the factory hole and left the factory 02 out, or made another hole somewhere? thanks for whoever replies

 

That's definitely helpful, in general! I'm commenting so I have a quick link to this thread. Thanks.

 

Will the gauge be any acurate?
Can you trust it?
Should I get one?

 

When Installing a the new O2 sensor, you have to bring your downpipe to a exhaust shop to get a custom hole put in it

 

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if you really want a narrowband a/f gauge...just get the apexi TT...you get a TT and the gauge that you can impress all your friends with...otherwise get a wideband if you REALLY want to know your a/f ratio

 

I highly agree with this, all the gauge will do is give you a light show. It is NOT accurate for tuning. Return it and get a wideband o2 gauge.