o2 issue

arena314

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May 13, 2019
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bucks county PA
hey guys I fired up my mustang for the first time in a few weeks to drive it and it threw 3 codes. Seems to drive fine still but I dont wanna beat on it or anything. Do you guys think I should replace the o2's and go from there? it has Bosch o2's it threw codes before for the same thing but that was before the car had boost. it has longtubes a paxton blower on it and bolt ons making 662 whp on pump with boostane
20210904_114808.jpeg


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ATX5.0

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May 2, 2014
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Texas
Check with your tuner first is my advice. If replacing o2s.. go with oem motorcraft/Ford parts. I’ve had o2s fail in the past.
 

slow306stang

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Jan 24, 2004
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Delco, Pa
I'm at the point where I make o2 sensors yearly maintenance. I've had 4 fail on me since the long tubes went on in 2014.
 

ATX5.0

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Yea man.. I hear that. It sucks. What LT header brand?
I had nothing but issues with bbk LT. Wish I would have gone with a quality header, kooks, ARH.
 

robvas

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Sep 8, 2020
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MI
Any chance you can switch tunes and run straight pump to see if the boostane is causing the o2's to fail?
 

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