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Urgent attention requested! Sudden jerks on accelerator lift within boost range, no codes. What...??

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Old 10-20-2005, 09:12 AM
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Sorry, set-up is everything stock but for N75J and chip
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Old 10-20-2005, 10:20 AM
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Default BPV = diverter valve
have you replaced or inspected the vac line going from the manifold to the bpv?
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Old 10-20-2005, 10:46 AM
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Default A new 710N makes less boost in my car. Is there a systematical way of replacing all vac lines?
Is there a diagram, or sketch with all the pipes to be replaced? I think my mechanic is a bit at a loss as to which pipes to replace, though I've told him a hundred times that those pipes need to be replaced.

I also heard something about the PCV Positive Crank Ventilation system, but don't know what that really is either. Maybe you can point me in the right direction. My Audi is a real nightmare right now.
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Old 10-24-2005, 02:40 AM
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Default PROBLEM FOUND: PCV T-hose was broken!
I should be getting the replacement tomorrow, so in all probability this will have solved the problem!
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Old 10-24-2005, 04:18 AM
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picture? location?
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Old 10-24-2005, 11:41 AM
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Picture here: https://forums.audiworld.com/a4/msgs/2342086.phtml
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Old 10-28-2005, 07:31 AM
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Default PROBLEM STILL THERE after new hose install
Finally dropped the car at the stealer today. I am now sick of this car!
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