So for the past 1000 miles I've been getting these codes, sometimes it's p2096 while others it's the p2077. In addition I've noticed that my MPGs have dropped quite a bit. I started seeing these codes ever since the dealership installed a new HPFP. Could it be a loose connection with my Atla intake or possible grease on the filter/oily MAF? Since then I've also added a FMIC, hot side boost tube plus changed the turbo oil line. New downpipe gaskets were carefully installed so I'm pretty certain that DP is not leaking.

Anyone have any input? I'm getting ready for a Manic tune but want to take care of of the underlying LEAN codes I'm seeing. TIA

 

I would check to make sure the alta intake in on. But I would guess that the O2 sensor neck might have been twisted at one point, did you mess with the DP at all ? When you change out the DP , people twist and break the neck on the 02 sensors and they fail.

https://www.northamericanmotoring.co...r-problem.html

 

Yes, I did twist the neck on the upper sensor to get it off. Poop.

 

Yep , i did mine with a tool and because of the heat cycles it get very brittle and get a crack or split under the sleeve and boot, its very touchy. So I had to get a new one.