Boost Drop question

[FromChaos79]

Okay guys here goes...

Im running the Cobb Stage 1 93 tune on my 14 Fist. When I first installed the tune and accessport a few months back I was initially seeing 19-20 pounds of boost. Even reached high 20's several times. However now the most I see in some WOT freeway runs or quick street blasts, Im only seeing numbers in the 18's. Rarely ever creeps to 19.

I have a K&N intake, exhaust mod, symposer delete, and a DIY catch can. Im not seeing boost leaks in the event of a check engine light or anything. I due have P0443 codes stored everyday. I clear them and they return. Its going to the dealer tomorrow for a door latch recall so they will look at the codes im storing as I mentioned it. Not sure if that has anything to do with the boost drop.

Toss me some thoughts as Id like to figure this out because I know this thing wants to rip more but is being held up!

Thanks Scott

 

[CanadianGuy]

Check all the clamps. OE can be loose from the factory.

 

[dmrush]

Found this thread while doing a search. I am having the exact same issues as OP. I also have the same Mods as you. What did you figure out as the reason you where losing boost?

 

[LaserWhisperer]

Try putting a gallon or so of E85 and try again

 

[FromChaos79]

Found this thread while doing a search. I am having the exact same issues as OP. I also have the same Mods as you. What did you figure out as the reason you where losing boost?

Well things have changed since I had posted this. Im on a Stage 3 93 tune now and going with a Protune here soon from someone. But part of my issue was my catch can leaking.