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Thread: dme swapping

  1. #1
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    dme swapping

    I picked up a spare dme for a 2001 330, should it work ok on a 2003 3.0 Z4 motor.,I've been chasing a random misfire problem.

  2. #2
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    If the Z4 uses the MS45 dme, then no. Not a simple swap.

    Random misfires are generally not from dme.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods. RomRaider self-tune work in progress.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg: Many Mods ~300ft/lbs tq, diesel, daily beater. Love/Hate relationship.
    - S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 260hp/420ft-lbs

  3. #3
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    Quote Originally Posted by 328 Power 04 View Post
    If the Z4 uses the MS45 dme, then no. Not a simple swap.

    Random misfires are generally not from dme.
    My cheap scanner showed cyls 3&4 missing ,new plugs didn't help, but its very random, todays road test shows if I turn ignition off, and restart, it cleared up?, that worked 3 times?,I'm gonna try coils next?( its a 3.0 Z4 motor in a 99 Z coupe).

  4. #4
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    So which exact DME and flash version are you using to run it?
    -Abel

    - E36 328is ~210-220whp: Lots of Mods. RomRaider self-tune work in progress.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg: Many Mods ~300ft/lbs tq, diesel, daily beater. Love/Hate relationship.
    - S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 260hp/420ft-lbs

  5. #5
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    no go on the 2001 330 dme, they're both ms43's , but the long id numbers are a little different?,todays road test was encouraging, no misfiring in a 80 mile trip,it seems like if I let it idle for a bit, the misfire will start, I held the idle up all day and no problem,including 4 autocross runs.l

  6. #6
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    only 3 and 4 always? Could be warped head.

  7. #7
    Join Date
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    Quote Originally Posted by hakentt View Post
    only 3 and 4 always? Could be warped head.
    I've got 700 miles on it, no antifreeze use?, shouldn't a ms43 dme run another year 330 engine?, just not perfectly, i.e, timing/injection changes?

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