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  • 1996 - 2004 SN95 Mustang -General/Talk-

A/F ratio gauge install questions.

  • Thread starter Thread starter AngryH58
  • Start date Start date Yesterday at 1:10 PM
A

AngryH58

Member
Jun 28, 2026
5
1
11
PA
Yesterday at 1:10 PM
#1
  • Yesterday at 1:10 PM
  • #1
My question is, can I use my driver side upstream 02 sensor location for my a/f gauge?
I do not have any cats, and my check engine light as been tuned out my the previous owner.
will it create a new code and throw a check engine light?
also, is the driver side upstream o2 sensor is in between the 3-9 o-clock positions to keep condensation out of the sensor?
I am looking at the aem eletronics x series wideband gauge.
Or should I obviously take the time to cut and weld a bung on...
Anyone have a good install video I can follow??
 

DadLife0724

Active Member
Mar 22, 2024
347
239
53
Cooperstown, PA
Yesterday at 1:38 PM
#2
  • Yesterday at 1:38 PM
  • #2
I vote for a new bung hole.
 

squeak93

15 Year Member
Jun 2, 2005
2,311
388
164
Joplin, Missouri
Yesterday at 2:25 PM
#3
  • Yesterday at 2:25 PM
  • #3
You must use a third bung or else how does the computer know how to trim fuel?
 
Reactions: DadLife0724
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