O2 sensors on 03 GT

auburntiger7231 · August 3rd, 2007, 10:28 PM

There should be 2 sets of O2 sensors on my car correct?? 2 upstream and 2 downstream. The 2 downstream are right by the chamber on the O/R Prochamber. But where are the 2 upstream sensors located?

HessiaN257 · August 3rd, 2007, 11:35 PM

Close to where the Manifolds/Headers meet the mid pipe.

bossman2kgt · August 3rd, 2007, 11:42 PM

I don't mean to get sidetracked but I was wondering if someone could explain the reason why installing a wide band oxygen sensor performs better than oem. Also I tried to do some research and was wondering if it's true that the wide band has 5 wires versus the oem 4 wire. And if this is the case, where does the fifth wire connect to. Thanks in advance.

August 3rd, 2007, 10:28 PM	#1
auburntiger7231 Regular Join Date: Mar 2007 Posts: 251 iTrader: 0 reviews	O2 sensors on 03 GT There should be 2 sets of O2 sensors on my car correct?? 2 upstream and 2 downstream. The 2 downstream are right by the chamber on the O/R Prochamber. But where are the 2 upstream sensors located? __________________ PP 75mm TB / Plenum Dark Force Cold Air Intake MGW Shortshifter 3.73 Gear Flowmaster 40's Mac O/R Prochamber H&R SS Springs Baer Brakes w/ 13 inch Rotors Custom Tune by MPH

August 3rd, 2007, 11:35 PM	#2
HessiaN257 Enthusiast 2000 Mustang GT 13.9@101 Join Date: Feb 2007 Location: New Jersey Posts: 805 iTrader: 0 reviews	Close to where the Manifolds/Headers meet the mid pipe. __________________ 13.9@101 before some mods

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August 3rd, 2007, 11:42 PM	#3
bossman2kgt Hardcore Enthusiast Join Date: May 2007 Location: Wichita, Ks Posts: 1,287 iTrader: 0 reviews	I don't mean to get sidetracked but I was wondering if someone could explain the reason why installing a wide band oxygen sensor performs better than oem. Also I tried to do some research and was wondering if it's true that the wide band has 5 wires versus the oem 4 wire. And if this is the case, where does the fifth wire connect to. Thanks in advance.

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