Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
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    Cyl 6 Misfire after repeated short run times

    I have not been driving the E46 for about a week. Most days, I have to start the car twice a day to change its position in the driveway to make room for other cars. The car never gets to run for more than 30 seconds. After a few days I was getting rough or inconsistent idle on start. Today, it threw a P0306, 6 cyl misfire. Car seems fine, other than a rough idle every few seconds or so. Do you guys predict a real problem? Or just symptoms from being driven only for very short amounts of time?
    Modification Thread
    Original Car: Silver Grey on Grey, A/T (1 of 186)
    As it sits: Silver Grey on Black, M/T (1 of 51)
    European Auto Source Tech
    Instagram: @CarbonZHP

  2. #2
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    Feb 2014
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    I would start by swapping the coils to see if the misfire follows. If it does, then bam-easy fix for a new coil. If it doesn't, then could be a problem. Could also be bad plugs from repeated 30 second runs.

    Most likely, not a huge problem (though I'm crossing my fingers!).
    Patrick ///04 330i ZHP///BMWCCA#465139///Jim Conforti Shark Injector///H&R Touring Cup Kit///Gruppe M Intake



  3. #3
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    What kind of plugs you using? I've noticed some misfires when I changed to NGK plugs about 4-5 months ago
    Call me Seth
    CURRENT: 2016 Long Beach Blue BMW /// M2
    RETIRED: ‘15 F22 M235i | '08 E90 M3 DCT "GoinHAM3" | '04 E46 M3 6MT "WEGOHAM"
    '04 330i ZHP | '11 E82 135i | '08 E90 328xi | 07 E91 328xi SportWagon

    Quote Originally Posted by danewilson77 View Post
    If I wore panties, I'd be dropping them right now.

  4. #4
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    Plugs are Bosch I believe. About a year old. I'm thinking I just need to get the car completely warm for nice and then try to not start it like I have been. Also this isn't my choice, the short durations. I wouldn't do this behavior by choice
    Modification Thread
    Original Car: Silver Grey on Grey, A/T (1 of 186)
    As it sits: Silver Grey on Black, M/T (1 of 51)
    European Auto Source Tech
    Instagram: @CarbonZHP

  5. #5
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    Branford, CT
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    Sounds like a coil to me. Follow Patrick's advice and swap the coils between other cylinders to see if the issue follows. If so, replace coil(s).
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun
    2003 330iT / 6MT
    Orientblau / Naturbraun




    It's not the car you drive, it's how you drive it.

  6. #6
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    Was my original thought. Will do.
    Modification Thread
    Original Car: Silver Grey on Grey, A/T (1 of 186)
    As it sits: Silver Grey on Black, M/T (1 of 51)
    European Auto Source Tech
    Instagram: @CarbonZHP

  7. #7
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    Quote Originally Posted by UdubBadger View Post
    What kind of plugs you using? I've noticed some misfires when I changed to NGK plugs about 4-5 months ago
    which NGKs, seth? (sorry for threadjacking) i'm about to install some BKR6E's.

    peter
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  8. #8
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    Quote Originally Posted by slater View Post
    which NGKs, seth? (sorry for threadjacking) i'm about to install some BKR6E's.

    peter
    The correct plugs are NGK BKR6EQUP. You're on the right track.
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun
    2003 330iT / 6MT
    Orientblau / Naturbraun




    It's not the car you drive, it's how you drive it.

  9. #9
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    Quote Originally Posted by az3579 View Post
    The correct plugs are NGK BKR6EQUP. You're on the right track.
    well it's for my M3 so not sure they are same are they?
    Call me Seth
    CURRENT: 2016 Long Beach Blue BMW /// M2
    RETIRED: ‘15 F22 M235i | '08 E90 M3 DCT "GoinHAM3" | '04 E46 M3 6MT "WEGOHAM"
    '04 330i ZHP | '11 E82 135i | '08 E90 328xi | 07 E91 328xi SportWagon

    Quote Originally Posted by danewilson77 View Post
    If I wore panties, I'd be dropping them right now.

  10. #10
    Join Date
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    a lot of guys with the N54's are having issues with misfires when changing plugs at 65k or so.
    Call me Seth
    CURRENT: 2016 Long Beach Blue BMW /// M2
    RETIRED: ‘15 F22 M235i | '08 E90 M3 DCT "GoinHAM3" | '04 E46 M3 6MT "WEGOHAM"
    '04 330i ZHP | '11 E82 135i | '08 E90 328xi | 07 E91 328xi SportWagon

    Quote Originally Posted by danewilson77 View Post
    If I wore panties, I'd be dropping them right now.

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