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FS: O2 simulator for post cat O2 ($50)

4K views 11 replies 4 participants last post by  716Spec-V 
#1 ·
FS: O2 simulator for post cat O2 ($50)
 

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#12 ·
I did antifoulers already. It worked fine for being NA but now that I'm boosted I get the p0420 code almost every year an replace the 02 sensor. I need a permanent fix at this point. Thanks for the info.

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