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Paul Workman · 11-04-2018

I have the K and N setup too; came with the car: bought in '07 and I never had a minute of trouble with it. But, it sounds to me like you're using WAAAY too much oil!

I don't know if that (K&N) oil has anything in it that would affect the O2s, but in any case that K&N kit should last for a couple treatments (at least). IOW, you shouldn't have ANY oil collecting in the accordion bridge hose or in the plenum!

Is the K&N oil contaminating the O2s somehow? I couldn't say. But, you can eliminate the excess oil from the intake and see if that fixes the rich problem (before changing out the O2s).

11-04-2018	#4
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: K&N Filter ? I have the K and N setup too; came with the car: bought in '07 and I never had a minute of trouble with it. But, it sounds to me like you're using WAAAY too much oil! I don't know if that (K&N) oil has anything in it that would affect the O2s, but in any case that K&N kit should last for a couple treatments (at least). IOW, you shouldn't have ANY oil collecting in the accordion bridge hose or in the plenum! Is the K&N oil contaminating the O2s somehow? I couldn't say. But, you can eliminate the excess oil from the intake and see if that fixes the rich problem (before changing out the O2s).