Thread: Getting UpRev done, what should I specifically ask the tune to include?
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Old 08-15-2013, 04:56 PM   #32 (permalink)
XwChriswX
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Originally Posted by MyKindaGuise View Post
Im pretty sure the secondary 02s will make no change for you. Those don't control AFR... That's why the primaries are specified as AFR sensors and the secondary's are 02 sensors. The 02's are purely for emissions as far as I know. I also run no secondary's now and have no issue.
So when someone adds a wideband AFR meter for a gauge in the console, are they tapping into the Primary OEM sensors, or replacing a primary OEM sensor?

Or are they replacing the secondary OEM sensor?

Or are they requiring their own bung to be added on to the piping?


Just wondering if you can turn off the OEM Secondary sensors, and replace them with an aftermarket AFR gauge in those bungs?
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