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funny noise on my engine .. and measurement on block 115 via Vwtool/vag

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Old 11-16-2001, 06:10 PM
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Default funny noise on my engine .. and measurement on block 115 via Vwtool/vag

well strange enough that my 3rd column is at constant # of 1000 to 1040 while my 4th column # fluctuate between 1040 to 1200 ... my understanding is that 3rd column is the requested boost, while the 4th column is actual boost.

do you guys know what is going on with my engine?? i am using vw tools.. i should have a printout of the graph in a second. many thanks in advance to the Vag expert.

i got andy's original bypass valve will be putting it in tonight..
Old 11-16-2001, 06:19 PM
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I'd guess at a bad bpv.
Old 11-16-2001, 06:34 PM
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i hope you are right ed.
Old 11-16-2001, 06:40 PM
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Default Whats the noise like? Is it rpm depended in terms of...

when it happens or in pitch?
Old 11-16-2001, 06:41 PM
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Default unfortunally it is only at the inital rpm.. and at 75%+ acceleration ...

noise sound like mini-mini-siren.. not a police siren.
Old 11-16-2001, 06:54 PM
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Default That sounds normal from what I hear (and I have two new ones).

They BETTER be good now.
Old 11-16-2001, 11:32 PM
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Default Actually .. it didn't sound normal at all..

sounds like a really wierd siren.... not turbo whine.... or really bad turbo whine... to me.

I've had many turbos.... never sounded like that.
Old 11-17-2001, 03:55 AM
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Default Oh so you've heard his?

Yeah, mine is a clear whine, not siren.
Old 11-17-2001, 08:38 AM
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Default Yah.... to me ... totally didn't sound normal...

it was like a police siren ... louder, more pronounced, and just didn't sound right...

I know that S4's basically sound like whistle's ... his .... I dunno.
Old 11-20-2001, 04:29 PM
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Mine sound the same...like a siren...but still has boost and no lack of power.


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