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2010 2011 BMW 5 Series Forum F10 Boost leak with higher than stock PSI |
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07-06-2015, 11:19 PM | #1 |
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Anyone deal with a boost leak yet from their tune? I've been noticing a stuttering like effect in WOT in 3-4th gear. Today it was really obvious when the stuttering was accompanied by the vent to atmosphere 3 times through the entire rpm band in 3rd. I'm hoping it's just the DV. I'm getting a CP in the next week or so hoping that will eliminate some of the possibilities.
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07-07-2015, 12:01 AM | #2 |
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I had something similar, by shuddering I had shaking of car and drivetrain malfunction light go on and heavy popping backfire... Scary
Car is in for service... Maybe plugs are bad |
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07-07-2015, 09:28 AM | #4 |
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I don't think dashCmd app is super accurate, but I don't think it's too far off. According to the boost gauge it's telling me I'm making 19 PSI. It feels more like 12-14, but either way wouldn't that be enough to cause a leak? And even more so with my DV?
In my E90 in map 5 I pushed 18PSI. Stacked with a flash a constant 15PSI, and I never had a diverter valve leak. Some people on the forums did so I guess I was the lucky one. However, the E90 DV went to the CP as where the N55 DV is a weak little component that sits on the turbo. I will reach out to them GSR Autosport. In the meantime CP and DV has been ordered.
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07-07-2015, 04:37 PM | #5 | |
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07-07-2015, 05:56 PM | #6 | |
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535i MIssion Performance, PS2, Helix HPFP Kit, Wagner FMIC, Spec 3 clutch, Steel SMF, Wolf Racing CP, UUC SSK, GFB dv, SprintBooster, Custom Dynomax Exhaust, M5 Sways, Eibach OE Springs, Koni Sports Adjustable, Custom Short Ram CAI
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07-07-2015, 06:15 PM | #7 |
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Use TorquePro bro much more accurate thats why I stopped using Dash Command as well. PM ME I'll get u the app to your email, I have both on my dropbox
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07-07-2015, 07:26 PM | #8 | |
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01-26-2019, 12:57 AM | #9 |
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I know you posted this a while back but I'm having the exact same issues, what ended up being the fix? Did the spark plugs do the trick or was it a boost leak?
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04-01-2023, 02:42 PM | #10 |
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I know this is an old post but I recently been having the same problem after installing my mst intake, Ftp boost/intake pipes and Gplus IC. Not getting any codes so I don’t think it’s a misfire… could it be a boost leak?? Did you guys ever figure out what was wrong? Thanks!
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