have you checked your spark plugs? you might have closed the gap on one...

 

Also any leaks before theturbo but after the MAF on the inlet pipe can cause lean readings as it is sucking in unmetered air. Do you have logs before and after? Compare the MAF voltages?

 

Guru, I had the exact same thought. You all can throw rotten tomatos at me later but when I bolted on the red the turbo outlet was 3" so my stock coupler didn't fit. So I found a couplet that I thought would work (here comes the tomatos) at autozone. I think with the heat and that coupler being a piece of crap it was air leaking, I noticed the other day the intake seemed a bit looser than used to be. When I pulled the coupler off yesterday the clamp even seemed too loose, So I am looking for a new coupler and will let you guys know.

 

Fuel pump relay, swap with the horn relay if you have not tried that yet. That and vacume line on FPR are the most common.

Not a boost leak as that would cause it to run rich not lean.

 

Just found it! The new fuel line I used when I mounted the new pump had started to tear in fact it was nearly torn in half. It was torn about 3/4" from the end, i'm thinking possibly when it was cut to length it was slightly cut ( possibly an oops cut) and with the pressure and how the line was routed it caused the slice to open up. As big as the tear was I can't believe it even started. Thanks everyone for the help.