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ECU Issues: 2000 Civic SI

Discussion in 'Civic and CRX - EF' started by tvctorj, Dec 12, 2006.

  1. tvctorj

    tvctorj New Member

    Likes Received:
    Dec 12, 2006
    Hey guys! I just joined this forum hoping you guys would know how to help me.

    I modded my SI by adding cold air intake, exhaust, new spark plugs (Bosch platinum), plug wires (10mm), Headers (Stainless, 4-1). I did all of this hoping that it would add some power to the car, and it has but, I find that at certain RPM ranges it lost power.

    After speaking with a few of my budies they say that I should have upgraded my ECU EPROM chip as well. My questions are:

    1) Is there an upgrade?
    2) If there is, where can I get one?
    3) Brands?
    4) Will it help?

    Im just hope I haven't messed any thing up or screwed my car up. Also after installing the cold air intake I notice a chirping sound at certain RPM ranges as well. I'm thinking it might be the intake but I dont know.

    If you guys can help me it would be greatly appreciated. I'm kinda a noob at some of these issues, so any help/suggestions would greatly help.

    Thanks! :)
  2. ef8

    ef8 Junior Member

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    Jan 25, 2006
    Certain mods are going to increase and decrease your power through out.You may lose power at a certain RPM but gain more at a higher/lower RPM.Its most likely not going to have a solid increase up to redline.You may gain it high,low or midrange
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