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Old 03-10-2007, 01:22 PM   #1
markeddy
Scooby Newbie
 
Member#: 129605
Join Date: Oct 2006
Location: Forest Lake, MN
Vehicle:
2007 Limited STi
Urban Gray

Default Which o2 sensor to tap?

I am going to buy the Apexi Auto Timer (pen sized). Anyway, I had one on my 2005 Evo and loved it for the battery voltage, o2 and a/f. I realize it's not the most accurate...but actually on the Evo it seemed to be fairly accurate. I also realize that I don't need one because the Turbo is liquid cooled and not oil cooled.

If anything for ME it's more of an eye candy thing, I think they are cool.

So, my question is...what o2 sensor do I tap (FRONT or REAR)?

The reason I ask is I read a couple threads that specifically say NOT to tap the Front because it can cause ECU problems. I am not sure how that conclusion was drawn because I tapped the Front o2 on my Evo and it worked fine. All it's doing is just reading off that wire if you tap it with a vampire tap.

Any help would be appreciated. Thank you.
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