M52 swap

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  • zaxxe30
    Advanced Member
    • Sep 2014
    • 103
    #1

    M52 swap

    I can get an engine out of a 528i. Is that gonna be the same as a 328i? And what Ecu can I use?


    Sent from my iPhone using Tapatalk
    '87 325ic
    '91 318is (first car) sold
    '99 m3 (sold)
    '84 porsche 944 (sold)
    '01 subaru legacy wagon
    Tags: None
    • agent
      Vice Grand Pubaa
      • Mar 2010
      • 7960
      #2
      Same engine, though I believe there are some subtle differences in the engine harnesses. For OBDII you'll need an MS41.1 ECU.
      Originally posted by kronus
      would be in depending on tip slant and tube size

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        • M3PO
          E30 Addict
          • May 2012
          • 537
          #3
          Yep, the harness is different. The 5-series harnesses are shorter I believe which makes placement of the DME a little more challenging. The upside is that the 5-series harness is wired for the oil level sensor (the 3-series harness isn't).

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            • 328ijunkie
              Forum Sponsor
              • May 2007
              • 3961
              #4
              E39 harness isnt feasable to use. Has sepearate diag port wired through body harness...

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