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Air/Fuel Guage Hook up Question

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Old Nov 24, 2002 | 12:21 PM
  #2  
stealth-wrx's Avatar
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Joined: Nov 2002
Posts: 673
From: Lake Forest, Calfornia
Car Info: 2004+ Two Tone Green
i would like to know this as well
Old Nov 24, 2002 | 08:46 PM
  #3  
hokusai's Avatar
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From: under the baseboards
Car Info: a Ford
its the rear 02 sensor. you can find a writeup on this at www.projectwrx.com
Old Nov 24, 2002 | 08:48 PM
  #4  
stealth-wrx's Avatar
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From: Lake Forest, Calfornia
Car Info: 2004+ Two Tone Green
cool. thanks
Old Nov 25, 2002 | 08:25 PM
  #6  
davenow's Avatar
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Joined: Nov 2002
Posts: 201
From: Somerville MASS
FYI

hooking up a normal A/F guage to a rear 02 sensor is WORTHLESS.(seriously, it tells you nothing having it that far back, ask around)
You need a 400-500 dollar wideband O2 sensor to get any kind of valid readings from it. The best place is to have an aditional bung welded into the up pipe or down pipe.
Old Nov 25, 2002 | 11:43 PM
  #7  
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Joined: Nov 2002
Posts: 275
From: NY
Car Info: o2 duburu arr exu
the rear o2 sensor is the common 1v sensor that is found in many other cars. the front is a wideband 5v sensor (please correct me if i'm wrong). if your car is stock, getting a/f ratios from the rear o2 sensor will work, but if you have no cats your readings will be all jacked up. my little apexi turbo timer wont even display a/f ratios anymore ever since i installed my headers and exhaust.
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