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99-00 si ecu

Discussion in 'ECU's, Electronics, and Tuning' started by civic2814, Oct 30, 2003.

  1. civic2814

    civic2814 Junior Member

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    i was wondering if anyone knows if i can use my 99-00 si ecu with my 98 ex motor and if so will it make a difference or will it make my motor lose power :D
     
  2. 1phatcivic28

    1phatcivic28 Member

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    the EX harness will not plug into the Si ECU... plus... the 98 EX is OBD2a and the 99-00 Si is OBD2b...
     
  3. jiahanhao

    jiahanhao Senior Member

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    98 civic ex = sohc vtec
    99-00 civic si = dohc vtec
     
  4. AllMotorMonster

    AllMotorMonster Senior Member

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    If you could plug it in, you might gain 2HP, but you can't plug it in so don't worry about it.
     
  5. calvin

    calvin Senior Member

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    just chip your ecu
     
  6. AllMotorMonster

    AllMotorMonster Senior Member

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    Can't chip OBD2b
     
  7. victech

    victech Junior Member

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    Yes you can chip obd2 ecus.
    It is costly.
    If you do want to pulg a p2t into a sohc civic hit me ill make you a harness.
     
  8. radnulb

    radnulb Senior Member

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    and at this point, chipping OBD2 is kinda pointless cause all the chips are costly OneTimeProgrammable garbage...

    OBD2-OBD1 + P28 or stick with stock.
     
  9. pissedoffsol

    pissedoffsol RETIRED

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    you're still an asshat :D
     
  10. radnulb

    radnulb Senior Member

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    from you, I will take that as a compliment. :)
    btw, I resigned as PGMFI admin. I felt I was too big of an asshole to be the admin of the site. I wanna take a break and focus more on writing code for a while anyways.
     
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