When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
cracked resonator causing bank 1 too lean bank 2 too rich?
I recently posted asking about my issue with my CEL coming on on my 05 4.4L and having 8 codes, all saying bank 1 too lean, bank 2 too rich. I was cleaning my TB when I noticed a crack on my resonator, now this is downstream from the MAF, but would it still trigger a code for too lean and too rich?
Last edited by patagucci; May 4, 2019 at 01:22 PM.
Of course it would be an issue downstream because its after the metered air. It would be like a hole in a drinking straw. Upstream (before MAF) would not be an issue. Seal it up with some high-temp goo. Also get that metal insert seated properly. I had one crack in mine too, FYI. Just one. I think this is going to start to be a big problem if more people find these.
cracked resonator causing bank 1 too lean bank 2 too rich?
