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      09-11-2018, 02:49 PM   #23
Iyzmi
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Quote:
Originally Posted by SVH View Post
On stock cats / exhaust I can understand the how that would work. Thanks. But what about full replacement systems, like an Akrapovic Evolution. I know a tune can turn off the CEL but is a tune necessary to account for O2 readings out of range?
Thanks
I think you're confusing primary and secondary O2 sensors. The CEL you get from test pipes/xpipes comes from secondary O2 sensors and the tune suppresses that. The primary O2 sensors are critical to proper engine operation while the secondaries are there for emission reporting purposes.

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put on a 3.33 inch pulley and the needed belt size for it.... roughly 10psi
Yeah, but you're a madman.
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      09-15-2018, 09:35 AM   #24
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Originally Posted by Iyzmi View Post
I think you're confusing primary and secondary O2 sensors. The CEL you get from test pipes/xpipes comes from secondary O2 sensors and the tune suppresses that. The primary O2 sensors are critical to proper engine operation while the secondaries are there for emission reporting purposes.
Thanks, that clears up my misunderstanding !
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      09-19-2018, 10:02 PM   #25
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Looks like there's a market for people with the ESS-625 looking for more power and I'm in that group. Someone should put together a kit...
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