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BMW 3-Series (E90 E92) Forum
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Help me Please!!!!
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10-13-2014, 12:03 PM | #1 |
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Help me Please!!!!
I have a 08 335i with jb4 and downpipes ...The problem I'm having is that the car won't go over 8psi on any map on the jb4.
I checked almost everything and can't figure out the problem. Here is a video I made of the boost solenoid and vaccum leak Watch "Jb4 335i check" on YouTube Jb4 335i check: |
10-13-2014, 12:51 PM | #2 |
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Make sure JB4 is upgraded to the newest firmware, then make sure everything is installed correctly.
Check for boost leaks, if none is found take it to the mechanic and ask them to check for boost leaks.
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10-13-2014, 01:38 PM | #3 |
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Do you give your car time for oil temps to go over 160 degrees F? If not your car maintains stock boost until oil temps are >160 Degrees F with the JB4
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11' m57 335d 165k Miles - JR 2, ATM Full Exhaust & Intake, Wagner FMIC, AAR Boost Pipe, AAR Swirl Delete, AAR EGR Delete
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10-13-2014, 06:10 PM | #5 |
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Drives: C6 Z06, 09 335i, 10 335xi
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Nobody watched the video? :SMH:
You will not hit peak boost while parked, you need to drive the vehicle. Boost is a measurement of restriction in the intake manifold. Without a load on the vehicle boost pressures are irrelevant. |
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10-13-2014, 06:14 PM | #6 | |
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Quote:
LOL…that was the first thing I saw…drive it! |
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10-16-2014, 06:52 PM | #9 |
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Drives: C6 Z06, 09 335i, 10 335xi
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After owning a website for several years alone, I can assure, NOBODY reads or pays attention to details.
I'm about to start putting subliminal messages into descriptions and see if people notice i tell them they smell bad or something. (something not overly offensive) How did you fix it? Others who run into same problem would want to know. |
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