so, since i set-up my ko4 pc-16...I had been holding at 14 and spiking at 16...

tonight I pulled out my MAF and sprayed it down with maf cleaner, then I let it dry...

I also replaced three hoses...one from the top of the DV to the Intake Mani....and the two little ones that leave the N75 and go to the compressor housing and the wastegate...
because they looked like ****, but I don't believe any of them were leaking...

I just went for a test run and I am spiking 21-22ish and am holding 19-20ish...

I believe what did it was cleaning the maf, but I am not 100% sure, since I also replaced 3 hoses...

but, if you have lost a lil boost, clean your maf!

i went to my local parts store and bought a can that was specifically for cleaning maf's...

hope this helps someone!

so is the pc16 setup running nice? how do you like it?

how much for maf cleaner i think i need to get some,,,

k i just went to auto zone.. 6.99 for maf cleaner.. i grabbed a can, but i dont have enough time to clean my maf.. im outa here going to work in like 5 min so ill probly do it when i get home at 10, or tomorrow morning

ok cleaned my maf.. and it got me to 11-12 psi.. a whole 2psi.. whoo.. but its not my 17-20 where i should be.. so i threw my MBC on and now im making 13psi . i think my tune is f'ed speed tuning has a 2year warranty. ill have to pick up a spare ECU for the downtime when i send my ecu back.. i think its because they threw a stage 2 software on it and im not ready for stage 2.

oh forgot to ask.. with my n75 still hooked up.. should the MBC go after the n75 or before it..i have it after right now.

you can put it after or just completely remove the n75 and just put the mbc back in.

i removed the n75 and it gave me stock readings.

i sent a message to speedtuning. so im just gona get my ecu re done.

stock boost u mean?

if so, up the boost controller so you boost more. with the mbc u get to control how much boost you want (hopefully u knew that )

yes i do.. but this is the thing...

I got chipped.. was boosting 17psi.. about a month later.. i wouldnt peak any higher than 10psi no matter what, i would peak 10 and hold 7 then keep droping.. ive been trying to see if it was a leak or something else, but its been cold out and i dont get time off from work, today was the only day i had to work on my car.. i sprayed the maf with maf cleaner. and went for a drive after it was dry. i saw 12psi.. then i bypassed the n75 with the n75 still plugged in, but not connected to the turbo and i wouldnt get any higher than 5psi. so i said f that.. connected the n75 back and put my MBC on after the n75 and put it all the way up, now i see a peak of 13psi.. so i think my software is messed up.. i sent an email to speedtuning. im going to get my ecu re-chipped to see if that fixes it.. i dont have any leaks, and everything seems fine.. im almost positive its a bad chip

Ive been only holding about 16 psi should be around 18-20 on the apr chip with n75 race valve. Im going to try the MAF cleaner and hope it works. I forgot its dusty as hell out here in az.