removing o2 sensors in a magnaflow cat back - Pontiac G8 Forum: G8 Forums -
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post #1 of 2 (permalink) Old 08-01-2016, 07:58 AM Thread Starter
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Join Date: Jun 2015
Location: connecticut
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Question removing o2 sensors in a magnaflow cat back

Well after putting in headers got code 0420 so either I tune it out but my flashpaq wont do that or I put in O2 filters for now. Thing is the O2 sensors are in a Magnaflow cat back system and are tilted up out of the way. Anyone do this and what tool did they use. I tried using the Autozone crows foot tool but that was a no go it kept slipping so I stopped.
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post #2 of 2 (permalink) Old 08-01-2016, 11:01 AM
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Location: phx az
Posts: 1,098
they make a o2 sensor socket , ive always used a wrench

its 7/8" aka 22mm

09 G8/GT stryker blue 12.13 @ 114 , best mph 115
04 5.7 auto 1 of 273 12.300 @ 110.953 1.74 60ft , 11.49 @ 120 on da bottle , formerly BMR's gto
06 6.0 M6 1 of 227 13.282 @ 106 1.9 60ft

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