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How do you reset the ECU?

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Old Oct 17, 2005, 04:38 PM
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How do you reset the ECU?

I want to reset the stock ecu. The only knowledge i have on it is to unplug the positive on the battery then turn the ignition to the accessory's and then tap the brakes and such and just drain the power thats already there. Then wait 30 min and then plug the positive back on the battery and then your good to go..

Is that right or am i wrong? Thanks
Old Oct 17, 2005, 04:40 PM
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.....just disconnect the NEG(-) on the battery for about 3 mins......then its reset
Old Oct 17, 2005, 04:40 PM
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leave the battery cable, pos. side, off for 5 mins, or go to autozone and have them reset it... why are you reseting it..
Old Oct 17, 2005, 06:47 PM
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i have to reset it cause the map thats on there now might be screwing up the fuel thats getting to the car not sure... the car isnt running correctly and by resetting the ECU i can get the stock map back on.

Now is it POSITIVE OR NEGATIVE.. it has to be positive
Old Apr 28, 2009, 03:50 PM
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that resets your current map. do you need a stock map for 8 or 9? i have both. just PM me the info and email address...
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Old Apr 30, 2009, 12:14 PM
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Hmm...I'm getting confused here now? "Reset" - meaning to resetting it back to the OEM factory stock maps? If so, why would he still need the base 8/9 maps?? Or, "resetting" to something else?? What does "Reset" mean here??
Old May 1, 2009, 09:50 AM
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I think the OP wants to go back to the stock VIII/IX map. I dont think reseting the ECU with the unplug battery cable method will work. That would render a tune thatt you pay $500 for useless when you swap out your dead battery.


you'll need to flash your car back to stock
Old May 1, 2009, 09:59 AM
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Originally Posted by pjb00stin
I think the OP wants to go back to the stock VIII/IX map. I dont think reseting the ECU with the unplug battery cable method will work. That would render a tune thatt you pay $500 for useless when you swap out your dead battery.


you'll need to flash your car back to stock
That is correct, disconnecting the battery won't magically bring the stock map back, you need to flash the stock map to the ECU either through a tuner or do it yourself with a tactrix cable.
Old May 1, 2009, 10:07 AM
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Originally Posted by pjb00stin
I think the OP wants to go back to the stock VIII/IX map. I dont think reseting the ECU with the unplug battery cable method will work. That would render a tune thatt you pay $500 for useless when you swap out your dead battery.


you'll need to flash your car back to stock
PJ you need to change your location =)

Did you get tuned yet?

And what he said is correct BTW.
Old May 4, 2009, 12:49 PM
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Originally Posted by Kings Fan
PJ you need to change your location =)

Did you get tuned yet?

And what he said is correct BTW.


HAHAHA! im keeping it like that! No tune yet,though.And thanks a bunch on helping me on the evoscan help bro!
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