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Old 10-28-2012, 02:52 PM   #1
Andrews-bad-SE
Focus Enthusiast
 
Join Date: Jun 2012
Fan#: 100389
Location: O'fallon, MO
What I Drive: 2003 Arizona Beige SE 4dr Zetec/ATX

Posts: 182
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O2 Sensor Issue.. P02195

Alrighty... So, I have an FSwerks race header on my Zetec.

Everything was going awesome for a long time. Like, since March. So I know it wasn't "biased" because of the header.

I made my own O2 cheater using the resistor/capacitor trick, it's still doing awesome for the downstream.

Now, I'm getting a P02195 (Upstream O2 sensor biased/stuck lean)
and I'm thinking since it's obviously the original one that came with the car, and it's 130xxx miles old, it's just time to change the sensor. I already ordered an NTK p/n 22060 from RockAuto.com.

Is this a good assumption?




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