boost is not holding

[junkboy]

it happens when i go wot. it goes up to 10psi and jumps back and forth between 7 to 10psi. it uses to hold well before. is my n75 valve bad? thanks

[thom337]

check your stock intercooler piping, its been known to fail at just about every joint along it. Also, I'd check all your vacuum lines in/out of the N75, and any other ones you might feel so inclined to check.

[a4wdhybrid]

could be a boost leak, blown dv, n75 surging...all sorts of things...start w/ checking for leaks

[junkboy]

thanks for the reply. i wiill check them today.

[B Dub 9NineTeen]

i think its between the dv and the n75 but good luck tho :gt-bb-chongin:

[t0ad99]

make a pressure tester!

What I did was, i got a pvc end plug, drilled a hole in it and put a tire air valve in. then hook that up to a scrap coupler and tie that down to the turbo inlet.

crank up the compressor and fill your system w/ about 15lbs of air and listen for your leak.

makes searching for leaks a snap..

[junkboy]

i found out my problem. the pvc hose is broken but the dealership wants 75 bucks for it. gez...for a 4 inch hose.

[Ak-Abe]

for 75 you can get a catch can and everythign needed with it to replace your existing PCV crap. :)

[Vampire Cockroach]

for 35 you can get a catch can and everythign needed with it to replace your existing PCV crap. :)

fixed that for ya abe :oddeye-hellyeah: