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Old 11-19-2012, 08:48 PM   #1
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Join Date: Jun 2012
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Location: O'fallon, MO
What I Drive: 2003 Arizona Beige SE 4dr Zetec/ATX

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A/F Ratio Guage Questions

I have a Zetec, with no tune...

I have a CAI, and flex-back exhaust from Option Racing...

I got an instrument cluster from a friend's zx3, which has the tach and everything...

But, there are two things that I want to monitor. A/F mix and voltage.

I'm going to put in a dual gauge pillar pod.

My concern is the A/F gauge. How do I wire it? I've heard it splices into the black signal wire of my upstream o2 sensor. Will the extra "drag" on the signal current on the wire to the gauge have any adverse effects on the A/F signal going to the computer? Just wondering before I do anything.

I want to avoid a tune to stay smog legal, I'm trying to "go legit." lol...

Any help or insight is greatly appreciated! Rock on, guys and gals.

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