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ECU Reset?

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Old Feb 28, 2007 | 02:45 PM
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Default ECU Reset?
Is it as simple as disconnecting the battery for about 10 mins on a 2002 WRX? Only reason is that the previous owner of the car used supermarket fuel and I want to run the car on V-Power.

Cheers
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Old Feb 28, 2007 | 02:48 PM
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I don't think its a necessity on these models as the ECU's learn quite quickly. A reset would speed up the process a bit though. I'd disconnect it overnight...
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Old Feb 28, 2007 | 02:48 PM
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Scoobypedia | Trusted knowledge for everything Subaru | ECU Reset browse
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Old Feb 28, 2007 | 02:53 PM
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I stand corrected!!
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Old Feb 28, 2007 | 03:59 PM
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Thanks for info
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Old Feb 28, 2007 | 04:07 PM
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anyone know if a snap-on disnostic will do the trick?

should I let it gradually learn the higher octane fuel or have the ecu reset asap?
Last edited by L33_WRX; Feb 28, 2007 at 04:12 PM. Reason: added
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Old Feb 28, 2007 | 04:13 PM
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what abt ecu,s in a STi prodrive,new age?i had slight hesatency at certain revs,disconnected the battery over night,my cars running fine now.the problem seems to have gone!!!!
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Old Feb 28, 2007 | 04:56 PM
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Originally Posted by L33_WRX
anyone know if a snap-on disnostic will do the trick?
I used a snap-on diagnostic to reset my ecu the other day and it worked fine...

WRX MY05
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Old Feb 28, 2007 | 07:18 PM
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Or you can use a PSI3 data monitor if you or a friend have one.
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Old Feb 28, 2007 | 07:45 PM
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Take the battery off for a few hours will reset a new age ecu, that's what Mike Wood posted on here a few weeks back.
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Old Mar 1, 2007 | 08:47 AM
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thanks for info - i have access to a snap-on unit for free but to save the hassle I'll disconnect over night.
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