Boost Leak?

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Sep 3, 2009 | 10:01 AM

#11

Gigantor

Thread Starter

1st Gear

Joined: Jul 2007

Posts: 239

From:

Quote:

Originally Posted by Broncoman75

what year is you car? if you are 2000+ I think you can get a VAG-COM and run a log of block 115 and look for requested boost vs actual boost.
If you dont have any external leaks you then need to check out your n75 valve and your diverter valve for issues.

Okay, how do I check the n75 for issues? It wasn't making any noise when I did the tennis ball leak check. And the DV is brand new, and functioned great when I installed it.

Quote:

Originally Posted by AutoUnionFan

you can find a gauge for $40 and use a dremel or something to make a vent mount.

when i use the tennis ball, i tunr the pressure down to ~15psi and charge the system for 5 seconds or so then stop and listen for leaks, it wont be loud and you need to check the entire charge system, never had an issue with the pankake valve

When I went to do this test, it wouldn't really "charge". I just got the noise of the air moving into/through the IM, and the air seemed to be gone from there. I'll check the hoses at the IM, but they looked okay.

Sep 4, 2009 | 05:57 PM

#12

TeeterTawter

2nd Gear

Joined: Mar 2006

Posts: 1,358

From: Sauga

clean your maf, we where getting the bank 1 code on the 01, checked for leaks and had no leaks, but the vagcom was claiming we had a leak. cleaned the maf, and the code went away, and requested boost was proper as per the vagcom