A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Boost problems (update)

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Old Apr 3, 2001 | 06:28 PM
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Default Boost problems (update)

Well as you guys know since I installed Ed's boost gauge I have realised how my boost levels rise and drop.

In stock mode I am getting about 8 pis of boost CONSTANT thru the power band of 3 - 5 K RPM.

Thats normal ...

Now in chipped mode on full throttle the boost level spoikes up to 14 PSI and then almost instantly drops to 10 PSI, and continues to drop as the rpm levels go up.

I called APR and they thought the problem was a cracked hose. I had my mechanic check all of my hoses yesterday and everythign was irie All was good no cracks no leaks.

Now, I called up AWE-tuning today and spoke to Mike (I think) and he is almost certain that the problem is my BPV is shot. Totally bleeding the boost. So he sent me out a bailey valve overnight for me to test. If it solves the problem great .. otherwise I just return it to them. No questions asked. He was awesome about it and I will have a review of the Bailey valve on Thursday or Friday night for you guys.


thanx for listening .. and God Bless
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Old Apr 3, 2001 | 06:31 PM
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Default good luck shorks! heres a pic for luck! (caution: disturbing, yet hilarious)

<center><img src="http://pictureposter.audiworld.com/997/shorki2.jpg"></center><p>
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Old Apr 3, 2001 | 06:32 PM
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Ok thats enough. i did not say anything for a while but that is truely enuff.
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Old Apr 3, 2001 | 06:34 PM
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lol, its all good brotha! good luck with the new bpv!
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Old Apr 3, 2001 | 06:37 PM
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Default definitely sounds like a leaky bypass valve issue, though u might want to try the Forge

it is fully rebuildable, cheaper and constructed of stainless steel, not plastic
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Old Apr 3, 2001 | 06:38 PM
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Default

Isn't your car still on warranty? Why not just get a new OEM valve? (for free too!)
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Old Apr 3, 2001 | 06:39 PM
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Hope everything works out for you shorki.
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Old Apr 3, 2001 | 06:51 PM
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well lets see if this is the problemor not first
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Old Apr 3, 2001 | 06:53 PM
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they COULD gimme crap about being chipped
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Old Apr 3, 2001 | 07:35 PM
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Default do you have a mod friendly dealer?if there are a few in your area, research and go to the one (more)

that talks highly of the A4's 'tuneability" etc.
My dealer here would blow me off in a second. Dealer I go to in KC is eager to hear about any mods I put on the thing and even recommend things to do next.
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