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      04-05-2013, 02:08 AM   #16
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Quote:
Originally Posted by M3takesNYC View Post
In terms of the pre-cat 02, while it is the "primary" sensor used, the post-cat O2 or secondary O2 "checks" what the primary did and if it was lean or any problems occured the secondary would light up and throw a code so I am not saying don't fix your primary sensor but its certainly not going to run lean or pose any danger with secondary intact
No. This is not how it works at all. Where do you get this information from?
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