Air/Fuel Ratio Guage - MustangForums.com

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Air/Fuel Ratio Guage

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Old 04-09-2008, 07:34 AM
  #1  
stang8689
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Default Air/Fuel Ratio Guage

I am looking at an Autometer air/fuel ratio guage #7575. I really have no idea how to hook this up to my 86. I want to make sure i'm not running too lean or rich. Anyone know how to hook one up?
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Old 04-09-2008, 08:10 AM
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94StinkinLincoln
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Default RE: Air/Fuel Ratio Guage

you have to put a bung in the exhaust, like a 02 sensor hole.
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Old 04-09-2008, 08:54 AM
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Joel5.0
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Default RE: Air/Fuel Ratio Guage

Aside the lights effect, that gauge will not provide you with the info you may be looking for. It uses the narrowband O2 signal (which is a "switching" type of signal) and it will not tell you the actual A/F lambda value. If you still want to pursue its use though, check the installations instructions at http://www.autometer.com/productPDF/0837L.pdf

A better and more economic alternative is to use the EEC-IV and check how it's working, run a set of DIY KOEO/KOER/Cylinder Balance Self-Test and check if you have any rich/lean failure codes stored.
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Old 04-09-2008, 10:04 AM
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FoxGT
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Default RE: Air/Fuel Ratio Guage

x2 on the narrowband only being good for the pretty lights. Better to look into a wideband.
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Old 04-09-2008, 02:30 PM
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bighungrymatt
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Default RE: Air/Fuel Ratio Guage

yeah I wouldnt waste money on narrowband
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Old 04-09-2008, 03:31 PM
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FivePointOhh
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Default RE: Air/Fuel Ratio Guage

narrowband FTL
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Old 04-09-2008, 06:14 PM
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stang8689
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Default RE: Air/Fuel Ratio Guage

So whats a wide band and where do I get one. The link didn't work
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Old 04-09-2008, 06:28 PM
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stang8689
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Default RE: Air/Fuel Ratio Guage

I was looking some up and they are about $350 does that sound right
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Old 04-09-2008, 06:32 PM
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1992lx5.0
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Default RE: Air/Fuel Ratio Guage

i wired mine in right into the main harness on the passenger side so it reading both o2s, ill get ya the wire color tomorrow
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Old 04-09-2008, 09:22 PM
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stang8689
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Default RE: Air/Fuel Ratio Guage

thanks
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