Boost Issue again "Suggestions" - Long
12-23-2001, 06:31 PM
#1
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Boost Issue again "Suggestions" - Long
I can't get my Car in to see my mechanic until the 7th, this sucks. was thinking about the boost staying at 1 and only supplying me with a little boost every now and again. what about the by pass valve? does anybody think this could be the problem. was looking at the Forge Dump/Diverter Valves. if the system couldn't get any boost or only some boost below say 3000 RPM could the valve be the problem and if so what should i replace it with? i have read the Bosch Valve and thier diaphram suck.
Helping a sick S4
Helping a sick S4
12-23-2001, 06:46 PM
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I've heard of some of the UrS4's having wastegate issues... (sticking open)
Do the UrS4's have bypass valves, even?
I assume you checked all your intake hoses to make sure nothing is loose/disconnected?
-T
I assume you checked all your intake hoses to make sure nothing is loose/disconnected?
-T
12-23-2001, 07:28 PM
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ok this is how u fix it
Up against the firewall under the stress bar, there is a black plastic box. Remove the box and you will see a little solenoid. There is supposed to be a vacuum line attached to it. Re-attach the line with a new clamp, it fell off. Common problem
Ned
Ned
12-23-2001, 08:37 PM
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Re: ok this is how u fix it
this black plastic box you refer to, does this have what looks like censors in it? travels vertically accross the firewall? say 4"w x 12"L?
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12-23-2001, 08:42 PM
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Re: I've heard of some of the UrS4's having wastegate issues... (sticking open)
Ya i was doing some reading ahh somewhere and o yes in the tech area and found a web page seansa4page he mentions he blew 2 diaphrams with the Bosch one and replaced them with the Forge. said his problems were solved
ah sorry thats BPV not wastgate lol
ah sorry thats BPV not wastgate lol
12-23-2001, 08:53 PM
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Lost me there friend
Vag? F-hose? TBB? I Have checked visually all the hoses around the Valve and all looks well. i will probably take the valve out tomorrow to make sure its ok.
12-23-2001, 10:07 PM
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Check the boot, not for tears but bad turbo sensor placement!
Please read as this is interesting. I had a SAMCO boot that was cut so poor that the top center turbo sensor was not held in the airflow...ZERO boost. Put a new boot in with proper sensor placement...walla bigtime boost. So check your Samco...I went to AMS but gunshy now.