Air/Fuel install, HELP!!

Steeda04GT

New Member
Dec 3, 2005
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I am putting in an a/f gauge in right now and dont know where to tap the wire at for the O2 in the ECU. If anyone out there knows from experience which pin# or color coded wire in the ECU is or has a ECU wiring diagram please let me know. Ive already got a good 12V and ground going, just stuck on where to tap into. If you can please let me know something ASAP that would be awesome so I can get this guy working right away. Thanks guys....

scott

2004 Mustang GT
 
Steeda04GT said:
I am putting in an a/f gauge in right now and dont know where to tap the wire at for the O2 in the ECU. If anyone out there knows from experience which pin# or color coded wire in the ECU is or has a ECU wiring diagram please let me know. Ive already got a good 12V and ground going, just stuck on where to tap into. If you can please let me know something ASAP that would be awesome so I can get this guy working right away. Thanks guys....

scott

2004 Mustang GT

Just use this simple instrudtions,and you can't go wrong.Got this from autometers webpage...:nice:

There are two options for this hookup as well, again it's the left or right sensors. Locate the PCM, which is above or behind the passenger side kick panel. Look for the 104-pin connector. For the left sensor you will go to pin 87 which is a red wire with a black stripe. For the right sensor you will go to pin 60 which is a gray wire with a light blue stripe.
 
Under full throttle, it will be more accurate than what most people think. I plan on adding the Innovate Motorsports LM-1 Controller later on and can use my Autometer A/F gauge with it. Right now, I got it just as a warning in the event I run lean under WOT.
 
narrow band is not accurate enough for tuning but can be used to notice a change.Therfore, it is more usefull than for show but understand the limits.
 
yeah im on the same page with ya mcm! its roughly at $50-60 gauge that i got for free so no complaints here. i understand its a nice little light show dance but does serve some detetion purposes....thanks for help and input guys
 
Here are mine, installed today:
 

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mcmmotorsports said:
Under full throttle, it will be more accurate than what most people think. I plan on adding the Innovate Motorsports LM-1 Controller later on and can use my Autometer A/F gauge with it. Right now, I got it just as a warning in the event I run lean under WOT.

And what exact A/F range is "lean" as displayed on a AutoMeter narrowband A/F display? How are they calibrated, if at all? At what A/F ratio does it cross from "Stoich" to "Lean"?