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Forced Induction Forum Sponsored by Active Autowerke
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Old 09-29-2012, 10:54 AM   #1
eaks
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330Ci AA stage 2.. Boost line?

Hey guys.. I am in the middle of troubleshooting a boost leak in my 01 330Ci with AA stage 2 blower.. I bought a PLX boost gauge/module and tested it out last weekend. It worked.. Now my question is where is the most accurate place to tap into the vac line for a good vac/boost reading? Any pics of the location I should use?
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Old 09-29-2012, 08:38 PM   #2
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Not easy to get to but yeah thats the best place
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Old 09-29-2012, 08:54 PM   #3
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Sorry I cant even tell where that is.. lol.. can you help me out? Also what size is the tubing (I need to get a T that is that size with one line a 1/8th or whatever i need for my sensor module.. Also does this pic show a hose removed or would I tap into that hose that is connected?

Thanks again!
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Old 09-29-2012, 08:58 PM   #4
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Port is made for a 8mm hose i think.
Its on the back of the intake manifold(the ports are facing the firewall)

If you look at your intake you'll spot the B and you can go from there.
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Old 09-29-2012, 09:01 PM   #5
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OK thanks.. So its a direct reading of manifold pressure? and there are spare nipples waiting for a hose on the stock intake?
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Old 09-29-2012, 10:37 PM   #6
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one is 8mm and other 2 is 6mm...
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Old 09-30-2012, 09:48 AM   #7
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And I take it stock these are all just capped off??
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Old 10-01-2012, 12:31 AM   #8
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Depends what year model urs is
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Old 10-01-2012, 04:20 AM   #9
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01 330ci!
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Old 10-01-2012, 01:12 PM   #10
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Quote:
Originally Posted by eaks View Post
01 330ci!
one line probably be attach in the back for the SAP unit...
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Old 10-08-2012, 11:22 PM   #11
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You can T in to the vacuum line that's routed to the bypass valve.
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