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BMW 3-Series (E90 E92) Forum
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Discussion on how the Boost Solenoid Works
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09-02-2012, 12:57 PM | #45 |
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what's your baseline? and was your max higher before and since gone down hill? Sounds similar to me - although I haven't bee back on a dyno in a while
Last edited by jpsimon; 09-02-2012 at 01:07 PM.. |
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09-02-2012, 01:17 PM | #46 | |
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Quote:
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09-02-2012, 01:32 PM | #47 | |
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Even weirder the exhaust note is different. From 1st to 2nd it almost use to sound like a badass backfire and now it is very subtle and almost sounds like the turbos are being back fed. Hard to explain the noise. |
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09-02-2012, 02:04 PM | #48 |
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mine pops a lot more than back in the day. like coasting to a stop in gear it pops like crazy.. definitely didn't used to do that. after replacing a bunch of vac lines and the solenoids it seems to have died down a bit so that's something...
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09-02-2012, 02:08 PM | #49 |
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Could a bad solenoid cause this?
http://www.e90post.com/forums/showthread.php?t=739248
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09-02-2012, 02:33 PM | #51 |
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Mine has the gurgles too when in gear and letting off the gas. What I'm talking about when I use to shift from 1st -2nd epically...It would pop during shifting. It sounded awesome! It sounded really aggressive and had tons of power. Now it doesn't. It almost sounds restricted with a weird whoosh. Like the wastegate is slow to close.
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09-02-2012, 02:34 PM | #52 |
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09-02-2012, 02:48 PM | #53 |
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got them from ecs:
http://www.ecstuning.com/Search/Boos...oid/ES2498186/ |
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04-30-2013, 01:21 PM | #55 |
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If anyone has one or two boost solenoids that are good please let me know. I'm trying to diag a 3100 + 30FE code on a JB4 that Terry at Burger has said are almost positively the solenoids or the wastegates.
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