Losing fuel pressure?

[Mostrouble]

I installed the spool helix 3x overdrive kit along with stage 3 lpfp kit. I am running a custom E50 tune. I tried doing pulls in 2-3 gear for adjusting the tune and the car stutters or bucks if I press the gas hard.
Finally I got a cel with code 2c01 and 2bf8... I noticed the fuel was dropping to near nothing when doing these logs... what could be going on?

 

[KClemente]

Since there's no logging for the low pressure fuel line its hard to diagnose what your issue could be. Is your tune properly calibrated for the Helix?

Also are you running a hobbs switch and if you are, is it properly setup?

 

[Jeffman]

Pulls should be 3rd gear only, starting at 2500 rpm, or 3-4. 2-3 is too fast. Five times to establish stfts etc. then log 3X.

 

[Mostrouble]

For give my ignorance but you are saying I shouldn’t do 2nd gear pulls because it is to fast. So I am never gonna be able to WOT in 2 nd gear? Before installing the stage 3 pump I was able to WOT in all gears with no issue... now the car falls on its face in 2nd gear.

 

[GreyNBlueE92]

Too fast to get meaningful data in a log. You wanna load up the engine. Higher gears have more load