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LS ecm

Discussion in 'HYBRID -> ED-EF / DA' started by racintweek, Mar 13, 2004.

  1. racintweek

    racintweek Senior Member

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    i'm putting an LS into my 91 hatch
    will performance suffer if i use the civic ecm and convert it to pgm-fi?

    i noticed the ecm plugs are not the same, so do i have to use the civic ecm?


    :unsure:
     
  2. brian11to1

    brian11to1 Senior Member

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    Just use a 90-91 Integra ECU. Yes performance wil suffer 1. Becuase,THe civic isnt MPFI, 2. The ECU isnt designed to run a DOHC engine.

    If you are looking for an ECU (or ECM as you call it), Ill let it go for $35 shipped. Thats probably the cheapest you'll find that ECU, so, let me know. Good luck with your swap.
     
  3. racintweek

    racintweek Senior Member

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    so what is the difference in the 90-91 and 92 ecm/ecu's
     
  4. cycloneb18c3

    cycloneb18c3 Senior Member

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    88-91 is OBD-0
    92-95 is OBD-1
    96-98 is OBD-2
    99-? is OBD-2B

    so a 92 ecu is obd-1
    a 90-91 ecu is obd-0
    if your car is a 92 you can get a obd-1 PR4 I belive, which will run a DOHC LS engine(which didnt come DPFI- it is the civic hatch everyone has)
    if your car is 88-91 you can get a obd-0 PR4 from a 90-91 integra and convert to MPFI.
     
  5. brian11to1

    brian11to1 Senior Member

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    Which is what he should do anyhow. ANd then he should buy the ECU I have for sale. Cuase Im a "BAT" (Broke Ass Tuner)!
     
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