1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Air/Fuel Ratio Gauge

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Old 02-27-09 | 01:47 AM
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Iwantagofast's Avatar
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ID Air/Fuel Ratio Gauge

What brand would you recommend?

Are they complicated to install? Is there a write up on this setup?

I'm also not sure where I want to mount this gauge, any good ideas? Pics of your setup?
Old 02-27-09 | 02:01 AM
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i like the AEM UEGO, also INNOVATIVE makes pretty good ones. the install is pretty easy, the biggest issue will be drilling the exhaust and welding in an O2 sensor bung

guage install
Old 02-27-09 | 02:02 AM
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its called a wideband o2 sensor (right?)
Old 02-27-09 | 02:03 AM
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if you have an se, you wont have to put the o2 sensor bung in
Old 02-27-09 | 02:06 AM
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^ assuming you want to either eliminate the PCM's O2 input in exchange for a wideband standalone guage or Y off the stock 1 wire o2 sensor for a not so accurate narrow band guage
Old 02-27-09 | 02:11 AM
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Originally Posted by Iwantagofast
What brand would you recommend?

Are they complicated to install? Is there a write up on this setup?

I'm also not sure where I want to mount this gauge, any good ideas? Pics of your setup?
I don't have any pics right now, but I have a PLX-250m mounted where the stock clock used to be (gsl-se with circle clock, between heater controls).

The circle gauge is an exact fit, like it was made to go there. I love it and every passenger I've ever had does too "what's that flashy number-y thing?"
Old 02-27-09 | 03:17 AM
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No its a base model so I would have to put one on the exhaust. I've read alot about a bosch lsu wideband o2 sensor being the best. Is that correct? Anyone have better luck with a different brand? Also when I place the wideband o2 sensor i'm guessing I need to put it pretty far back from the headers due to the heat. Where is the perfect spot?
Old 02-27-09 | 08:21 AM
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go with the aem uego, it fits in to the clock no modifications as well, a bung needs to be welded to the exhaust, I went as far back as possible with aem's wireing, and there recomendation to keep the sensor away from hot exhaust 3 years/60000km on the original sensor still reading accuratly

if you have stock exhaust it needs to be before the airpump/cats so it sees the real afr, if no cats/airpump(like an rb streetport system) i put mine right before the muffler at the only point where its 1 pipe and theres just enough room and wire.
Old 02-27-09 | 09:09 AM
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Thanks Clearkut.
Old 02-27-09 | 09:29 AM
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I have a narrowband AFR. It's an Autometer ProComp Ultralight. Like TastyDanish, I put it in the place of the stock clock, it's sweet.

I think for aesthetic reasons I might switch all my gauges over to Autometer ES gauges so they'll match the stock console cluster.

The ES gauges are black faced with red through-the-face lighting (the numbers are white when unlit). The ProComp Ultralights are white faced with black lettering and around-the-face red lighting. They're just a little too bright when driving at night, esp. with the boost and fuel pressure gauges on the pillar all shiny in my field of vision.
Old 02-27-09 | 10:20 AM
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How far behind the header did you put the bung?

I have a RB header and am having the bung welded in today.
Old 02-27-09 | 10:08 PM
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before turbo, i ran an RB 2-1 header and i drilled/welded the header in the middle of where it Y'd together
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