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BMW 3-Series (E90 E92) Forum
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Low vacuum pressure??
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02-15-2016, 09:30 PM | #1 |
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Low vacuum pressure??
So basically I have been getting 30ff codes on wot above 5500-6000 rpms. I've been replacing vacuum lines. Checked my DV's. Even when I pull the cap on the brake booster I can hear air being sucked in. Wouldn't that mean I'm getting vacuum pressure? What else can be causing my 30ff. I have really bad wastegate rattle and wondering if my wastegate a are stuck? Any help is much appreciated. I've been dealing with this 30ff for a while and cannot stand it anymore want to go fbo but no point With this 30ff though.
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02-15-2016, 09:41 PM | #2 | |
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Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
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Quote:
http://www.n54tech.com/forums/showthread.php?t=13114 It's a bit complex. Also boost solenoids can be on there way out. How many miles on vehicle? |
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02-15-2016, 10:28 PM | #3 | |
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Quote:
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02-15-2016, 10:53 PM | #4 |
Private First Class
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Would doing the solenoid bypass mod be a way to see if my solenoids are not working correctly? If I disconnect the solenoids and the 30ff goes away wouldn't that mean the solenoids aren't functioning properly?
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