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Thread: ECU reset for civic

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    Default ECU reset for civic

    read this on some site k if we remove this fuse for 15 seconds and then put it back start the engine for 20 seconds dnt do anything in this time keep the engine runing, again off the engine and start it again for complete rest.
    will this work?
    ECU reset for civic -39660

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    Doesn't disconnecting the battery for a certain amount of time achieve the same thing?
    Trolls EDPP

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    removing a fuse as compared to battery is much easier? what u say?
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    why would one want to reset the ECU in the first place?

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    I think they are equally easy.Just have to disconnect the negative terminal.
    Trolls EDPP

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    but whats the advantage of an ECU reset ? isnt it a disadvatage ? all the tuning parameters also get reset ?

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    Quote Originally Posted by mohsin129 View Post
    but whats the advantage of an ECU reset ? isnt it a disadvatage ? all the tuning parameters also get reset ?
    han yar koi to telooooooo

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    which tuning parameters?? when ECU is reset the tuning parameters go back to factory settings.

    Normally ECU parameters are not disturbed during tuning unless you are going for some high end performance adjustments.

    Reset is done to get rid of erroneous data either in chips memory or from sensors or malfunction of chip itself.

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    One question - does the check engine light report all sorts of deviations from normality?

    My civic's fuel cuts off at 5500 rpm on petrol, no matter what gear, no matter what speed. Can resetting the ECU resolve this issue?
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    Quote Originally Posted by bango View Post
    One question - does the check engine light report all sorts of deviations from normality?
    My civic's fuel cuts off at 5500 rpm on petrol, no matter what gear, no matter what speed. Can resetting the ECU resolve this issue?
    Which engine is it bro?
    I once disconnected VTEC solenoid wire and it was cutting my engine off at 5500 RPMs coz it was the VTEC activation point and no solenoid was present to do so, hence it was limited... AFAIK

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    Quote Originally Posted by uiv View Post
    Which engine is it bro?
    I once disconnected VTEC solenoid wire and it was cutting my engine off at 5500 RPMs coz it was the VTEC activation point and no solenoid was present to do so, hence it was limited... AFAIK
    I think you're right.

    Would it be the same issue if a non-vtec ECU is installed on a vtec engine? If yes, is the ECU easy to re-program to become a vtec compatible ECU? Or do we have to replace the ECU all together?
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    Quote Originally Posted by bango View Post
    I think you're right.
    Would it be the same issue if a non-vtec ECU is installed on a vtec engine? If yes, is the ECU easy to re-program to become a vtec compatible ECU? Or do we have to replace the ECU all together?
    Yep right, non VTEC ECU wont have wiring for VTEC soleniod for it to activate VTEC.
    The best option is to replace the ECU. Yeah there are some other ways: cheapest is to simply install a button some where in driver's approach and wire it to the solenoid. Pressing it at right RPMs would activate the VTEC. It isn't a perfect solution but won't cost you more than a couple of hundred rupee. Could be a fun DIY.
    Other option is to get your ECU chipped. You can meet Mr. Iqbal @ Chuburji for this. They can install some kind of relay or whatever that senses RPMs and enables the solenoid current flow at sepcific engine RPMs. That would work fine and not a very difficult or expensive job that must be.
    Best of luck

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    Yes, it seems ok and actually this fuse would do the trick not battery terminal, WHY...

    It's same like computer CPU, To reset computer CPU master configuration, you need to take jumper out switching computer off doesn't reset otherwise every time you off computer it should reset.

    There may be inbuilt standby power supply capacitor for this and it uses very low current like cells. AND yes in computer if you don't take jumper out , take the cell of motherboard.

    So this would be it, but identify the physical position rightly...

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