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Old 08-20-2007, 06:44 PM   #1
Wally39
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Default AEM air/fuel gauge

I'm having this gauge installed by a local shop. They had my car all day and they still aren't done with it. Does anyone else have this gauge? Is it really that time consuming? I had them install my boost gauge and did such a good job I took it back to have them install this one. The air/fuel gauge must have more to wire up.
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Old 08-20-2007, 07:16 PM   #2
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Default RE: AEM air/fuel gauge

Well if your boost gauge is mechanical then there shouldn't be anything to wire up except the light.

The air/fuel ratio gauges are wired to an O2 sensor before the cats. It shouldn't take all day IMO, i bet they ran longer than expect on other jobs and didn't get to it today.
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Old 08-20-2007, 07:22 PM   #3
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Default RE: AEM air/fuel gauge

It has it's own Bosch sensor.
Wideband
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Old 08-20-2007, 07:43 PM   #4
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Default RE: AEM air/fuel gauge

Doesn't the sensor, that comes with these air/fuel gauges, replace the stock O2 sensor before the cats? I assumed that is the way it works or do you actually have to weld something to the exhaust manifold to install it?



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ORIGINAL: Wally39

It has it's own Bosch sensor.
Wideband
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Old 08-20-2007, 08:11 PM   #5
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Default RE: AEM air/fuel gauge

stupid question but I am new to the FI world but have seen several wideband gauges what the hell does that mean?
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Old 08-20-2007, 08:11 PM   #6
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Default RE: AEM air/fuel gauge

The wide bands get there own sensor. It'll take a muffler shop about 2 minutes to weld in an o2 bung and shouldn't take more then an hour to do the wiring. They must be backed up. Hopfully.
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Old 08-20-2007, 08:14 PM   #7
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Default RE: AEM air/fuel gauge

Ittookme like two hours installed it in the center dash gauge pod.I have an off road pipe so i just used the existing bung.
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Old 08-20-2007, 08:16 PM   #8
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Default RE: AEM air/fuel gauge

The wid band sensors compared to a regular A/F gauge are just really more accurate. A normal A/F gauge will still do it's function but with a wideband you can get the actuall reading, i.e. 11.4.
I got a regular A/F gauge in a nitrous car and it did it's job when an injector went out. Pegged lean so we let off. The $60 gauge saved the motor.
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Old 08-20-2007, 08:33 PM   #9
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Default RE: AEM air/fuel gauge

Good info! Who makes a good wide gauge for FI?
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Black GT:SaleenSC 3.4 pulley
463rwhp
430rwtq

11.91@ 119.7 1.72 60ft

New Setup
http://www.youtube.com/watch?v=9qfXPKo-Mfw
http://www.youtube.com/watch?v=jCs_5H4h_aQ

YouTube killed the music on the second vid
Old Setup

http://www.youtube.com/watch?v=8JfNwwO2sko
http://www.youtube.com/watch?v=zZlbZoC-pXg
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Old 08-20-2007, 08:45 PM   #10
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Default RE: AEM air/fuel gauge

AEM has a good one
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http://oi.b5z.net/i/u/1473169/i/Mustang/smustdyno.mpg
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http://store.summitracing.com/egnsea...4&D=308464
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