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  1. #1
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    Exclamation Misfire after High Rpm Shift .. Help!

    When i do a 3rd gear pull up to 7k then shift into 4th fairly quickly my car wil hesitate then throw a SES and sound like a Subaru The SES goes away after awhile but i am getting a code for Cyl 6 misfire. Could this be a bad Coil pack/ spark plug? It's weird that it only happens after a hard shift. Sometimes i feel hesitation down low around 2k rpms in 2nd gear also around town and every once and awhile a random hesitation.

    Car is FBO with Jb4 .


    Thank you !
    08 135i | Alpine White | 6 Speed | M Sports pkg |
    | Berger Intake | Code 3 intercooler | Riss 3 inch Dps | Berk Exhaust | Quaife 3.46 LSD | Euro 1M/LCI Headlights | BMS OCC | Drag DR-37 18X8 ET 40 | 245/35R-18 Kumho Ecsta XS |

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    When i.was experimenting with e85 amounts my car would do this. If you are on e85 lower your percent if not try to replicate it and send a log to Terry
    Turbo lag is the on ramp to the highway which is power.

  3. #3
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    Why would the E85 be causing it?

  4. #4
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    I am also not running E85. Moved coil from cyl 6 to 5 and the misfire followed. So i figured out my culprit ! Also going to change my plugs while im at it.
    08 135i | Alpine White | 6 Speed | M Sports pkg |
    | Berger Intake | Code 3 intercooler | Riss 3 inch Dps | Berk Exhaust | Quaife 3.46 LSD | Euro 1M/LCI Headlights | BMS OCC | Drag DR-37 18X8 ET 40 | 245/35R-18 Kumho Ecsta XS |

  5. #5
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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Why would the E85 be causing it?
    Probably if he is running high boost with no Base flash, he might be running lean... Or it could be as simple as spark plugs/coils...
    SOLD --'07 E90 335i, PTF COBB E50, HFS4, ER CP, ETS 7", AA DP, Vishnu Exhaust, DCI, ACT, Nitto Nt555

    '10 E92 335i M, 6MT COBB v3, ER IC, ER CP, VRSF DP, Fuel-it st2
    installing soon: Mfactory LSD, , powerflex subrframe bushings

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