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91 EF to 91 LS swap HELP!!

Discussion in 'Civic and CRX - EF' started by eman13, Nov 6, 2009.

  1. eman13

    eman13 New Member

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    :confused: 91 EF si to 91 LS what harness can i use and which ecu,ls plugs dont fit only one big round plug on the passenger side . Do i need to wire anything . sorry about this stupid ? but I'm new at this
     
  2. blasterman87

    blasterman87 New Member

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    use the stock harness if its a si or hf. if its a dx then convert to mpfi and still use the stock harness...
     
  3. eman13

    eman13 New Member

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    which ecu can i use? ls or ef
     
  4. blasterman87

    blasterman87 New Member

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    ls, always use the ecu for the engine. and yes it will plug right in
     
  5. phyregod

    phyregod !!YTINASNI

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    Use the Si engine harness and the LS ecu. Everything will plug right in.
     
  6. eman13

    eman13 New Member

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    Thanks for the help , I appreciate it .
     
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