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Thread: Tutorial: How To Properly Reset Your Ecu

  1. #1

    Default Tutorial: How To Properly Reset Your Ecu

    step 1: take your car for a brisk drive to get the motor to operating temperature.

    step 2: take your car home, and take the fuse for the ecu out. it'll more times than not be labeled, but on civics and integras it's under the hood for sure. wait 15 minutes.

    step 3: put the fuse back in.

    step 4: turn the car on. DO NOT TOUCH ANYTHING. GIVE IT NO GAS. let the car idle for roughly 15 minutes, or until the car is idling smooth at lower rpm's.

    step 5: turn the ignition off. ONCE AGAIN, DO NOT TOUCH ANYTHING OTHER THAN THE KEY. immediately turn the ignition back on after you have gone to full off. this will store the new settings your ecu has made.

    These steps will properly reset your ecu. After they are accomplished go do whatever, the new settings have been stored.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  2. #2

    Default

    where would the fuse for the ecu be? passenger side in the little black box on the strut tower? its a 1990 civic si

  3. #3

    Default

    in the fuse box under the hood.
    ~ 2001 Silverstone Metallic Honda S2000

    Quote Originally Posted by EXCellR8 View Post
    my little rod broke off

  4. #4

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    i think it's labeled ECU Backup..

  5. #5

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    what does reseting your ecu do?

  6. #6

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    Quote Originally Posted by DeathIsCertain
    what does reseting your ecu do?
    resetting allows your ecu to recalibrate all of its settings, thus allowing your engine to run at its maximum efficiency.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  7. #7

  8. #8

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    my parents got a jetta, the check engine light is always on but who knows wtf is wrong with it... if u bang the dashboard, the check light will go off sometimes... i dont know man its fuckin weird and i kno resetin the ECU will be stupid cuz if somethings wrong then its not gonna fix the problem like that, but once they get it fixed, will resetin the ecu make it run better?

  9. #9

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    indeed.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  10. #10

    Default

    "disconnect the battery for a 1/2 hour to reset the computer. That should make everything nice and smooth."



    ^i was reading that on www.Gs-r.com, is that another way to reset ur ecu?

  11. #11

    Default

    follow my instructions. they are the proper way.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  12. #12

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    alright cool, thanks for the help man, god dam i cant wait to get my car!

  13. #13

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    http://www.superhonda.com/forum/showthread.php?t=129796

    these guys also said that disconnecting the negative battery cable for 30 SECONDS will reset ur ECU... is that true, if u read the posts ull see more stuff that other people say... sounds easier, they swear its the proper way because they do it at honda dealerships or something like that... are they right or will it fuck the car up?

    and do u have to disconnect the battery in ur method batman?

  14. #14

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    you can disconnect the negative terminal, but it's easier to use the steps i listed. that is the PROPER way. believe me my dad just had his shit done at honda, and lost a ton of power. after i reset it my way, he had it back proper. just trust my steps. i've done it too many times to count.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  15. #15

    Default

    alright thanks again man but god dam even other websites who teach u how to reset it make u wanna do it the battery way...

    http://www.c-speedracing.com/faq/02.php


    but yea u didnt answer my other question, when ur resetting the ecu the way u posted here... do u have to disconnect the battery first or just do it without disconnecting shit but the ecu fuse? and what about the backup fuse, i keep readin people mention that thing, what is it and should it be disconnected or reset?

  16. #16

    Default

    just do the fuse. it serves the same purpose. by doing it this way, you don't reset all your other stuff such as radio in the car. the ecu is the only thing affected. and there is only one fuse for the ecu fuse. under the hood and labeled.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  17. #17

    Default

    just to clarify, the fuse batman is talking about is rated @ 7.5A


    its the only one in the under hood fuse box



    -slammed


    Scout Sniper Platoon/ 0351(Infantry Assaultman)

  18. #18

    Default

    Quote Originally Posted by slammedEM1Si
    just to clarify, the fuse batman is talking about is rated @ 7.5A


    its the only one in the under hood fuse box



    -slammed
    negative ghost rider. there's two 7.5A fuses.

    eh it's a fuzzy pic, but it looks like there's 2
    When we drink, we get drunk.
    When we get drunk, we fall asleep.
    When we fall asleep, we commit no sin.
    When we commit no sin, we go to heaven.
    So let's get drunk, and go to heaven.

  19. #19

    Default

    it's the second one down on the far right in that picture.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  20. #20

    Default

    i will be doing this later this afternoon.
    When we drink, we get drunk.
    When we get drunk, we fall asleep.
    When we fall asleep, we commit no sin.
    When we commit no sin, we go to heaven.
    So let's get drunk, and go to heaven.

  21. #21

    Default

    good good. it does help.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  22. #22

    Default

    The fuse in my 90 Si is labeled 'ECU' rated @ 15a.

    Question: I have been told to also remove the 10a 'hazard' fuse when removing the ECU fuse. Seems the ECU doesn't reset properly without removing them both. Hazard fuse allows for memory backup or somehow doesn't allow a full reset?

  23. #23

    Default

    i've never removed anything but the ecu fuse.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

  24. #24

    Default

    but how do you KNOW if the ECU is reset?

    and mine is not labeled. I'm having the hardest damn time finding that sucker!

  25. #25

    Default

    there's no little indicator light that tells you. but trust me, just follow the steps and it will be.

    Quote Originally Posted by FknTkn
    It sucks and as much as I hate to admit it, Batman was right
    ORLY???

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