Cracked brake booster line cause boost leaks??

[sambb]

yep should be on 20 in/hg

[Nikogti]

I moved around the silcone hose going from the boost gauge to the T piece and got it to read -18. Maybe I might have to expand the hole on the passenger side where i feed the hose through.

All I did was clean the maf plus put injector cleaner in and fixed that brake booster line with silcone tape. But just odd after unplugging the n75 2x its hitting 23psi always now. But couldn't get past 18psi before.

I ordered new ngk plugs A new maf and a new n75 valve they should arrive this week.
I Just can't wait for the smoke machine to arrive so I can go over it all. But next week I'll take it for live logging and want to do a power run on a dyno

[sambb]

Just occurred to me that it could also be the diverter valve itself. To test it remove it from the car with the vacuum line hose still attached. Push the plunger up (its spring loaded) while sucking on the vacuum line. When you release your finger, the plunger should stay put/float on the vacuum you are holding on the top side of the DV with the line that's in your mouth. If the plunger slams shut then the DV diaphragm is torn and it'll be bleeding off boost, maybe intermittently.

[Nikogti]

This is my 3rd dv in past 2 months the stock one broke open and then upgraded to a audi tt one & that blew up in a week and now have a 3 spring setting metal dv I've put the yellow spring in that's meant to hold 25psi and the red spring holds 15 to 20psi and the silver spring is for stock.. it did come with 2 metal spacers and unsure how that works anyway but put them on there and screwed it back togther.

Just changed the spark plugs to one step colder plugs and its sitting at -20 now
Plus my boost gauge I'm only getting 18psi all day today

[h100vw]

You know you need to have it loaded up, a boot in 2nd wont show the same pressure as a drag uphill in 4th.
A 3rd gear log from 1500 revs is what is needed as a test

[Nikogti]

Thanks I just did A 3rd gear pull from 1500rpm up hill holding 18psi but vac is fine now at -20 my n75 should arrive by friday I hope that's the problem.

[h100vw]

I doubt you will find a drama with the N75. In my experience, they work or not, nowhere in between.

[PoloGIT]

Hopefully have my own boost leak sorted soon. Maybe take a look at this to see if it's of any help... Missing when cold

Good luck!

[Nikogti]

Lol well I'm not that excited about my n75 arriving then after knowing that.

Thanks for the link & I can't wait to pressure test my car and good luck with your leak mate

[Nikogti]

I'm doing a pressure test i can hear a massive leak but can't find it but I did find a few little spots. What's this part called please anyone in 2nd pic below

[Nikogti]

All sorted for the main leak it was the TIP clamp to the turbo it was loose and just tested it at 40psi of pressure and no leaks ��

[h100vw]

I'm doing a pressure test i can hear a massive leak but can't find it but I did find a few little spots. What's this part called please anyone in 2nd pic below

That's the suction jet pump

[Nikogti]

Thanks heaps mate I just ordered it & that part was bubbling up heaps under pressure