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12-21-2014, 02:20 PM | #1 |
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Vibration and uneasiness at higher RPMs
I am experiencing vibration/engine being uneasy at high RPMs (4K+). It is more noticeable at lower gears (1st, 2nd). The engine just doesn't sound very smooth and happy- I believe coming from the engine bay. I'm lucky to try the same with my 335i, but the 335i seemed a lot smoother. Any possible issues? Would spark plugs/walnut blasting help? Or is this all normal?
N54, JB4, DCI, and performance exhaust. No errors thrown! Thanks! Last edited by thetaobear; 12-21-2014 at 05:56 PM.. |
12-21-2014, 02:32 PM | #2 | |
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Quote:
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2009 135i 6MT jb4, ER CP, Tial BOV, 7" VRSF FMIC, BMS DCI, BMS 91 Pump flash running 35% e85
09 G8 GT 05 GTI 1.8T 5spd |
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