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Registered:
May 2005
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reset ECU = better performance?
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Thu, 09 June 2005 13:57
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hay guys. been hearing that if you reset the ecu (by d/c battery for 30minutes) you could increase performance ?
the reasoning provided for this was that it adjusts something.. i dunon. timing, air flow, whatever it is, and it adjusts it to your new driving style. ie, thrashing!!!!
i dont know if this is true or bs.
does resetting yoru ECU and then thrashing your car after you reconnect it actually give you better performance?
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Location:
sydney
Registered:
July 2004
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Re: reset ECU = better performance?
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Thu, 09 June 2005 14:15
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it does increase perfomance in some cars with learning cpus with autos ( basically lets you hold in gears longer b4 shifting.) audis bmws ect have this feature but not in early model injection pre 1990.
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Registered:
May 2005
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Re: reset ECU = better performance?
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Thu, 09 June 2005 14:25
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so say, in a 92 corolla sx manual it would do nothing?
so resetting the ecu will not alter anything else?
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: reset ECU = better performance?
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Thu, 09 June 2005 14:31
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i seriously doubt it sounds like a crock to me
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Location:
Rocky Mountains, Canada
Registered:
May 2002
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Re: reset ECU = better performance?
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Thu, 09 June 2005 16:15
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I doubt it too.
But you might as well give it a try... got nothing to loose.
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Location:
Kelmscott, Perth, W.A
Registered:
March 2004
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Re: reset ECU = better performance?
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Thu, 09 June 2005 16:44
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damn man your gonna have to re do all your settings again on your cd player!! maybe give it another thought.
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Location:
Melbourne
Registered:
May 2002
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Location:
Melbourne
Registered:
May 2002
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Re: reset ECU = better performance?
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Thu, 09 June 2005 21:13
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Oh, you might get a performance increase if your ecu had detected a fault and was making the car go into limp mode... so after you correct the fault and reset the ecu everything should go back to performing as normal... or just keep resetting the ecu 
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Location:
Forster NSW
Registered:
September 2004
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Re: reset ECU = better performance?
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Fri, 10 June 2005 01:50
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| Mofo III wrote on Fri, 10 June 2005 02:44 |
damn man your gonna have to re do all your settings again on your cd player!! maybe give it another thought.
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 Plus the clock! That's the kind of thing I think about whenever I have to disconnect my battery, the thought of risking a fuse is tempting sometimes.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: reset ECU = better performance?
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Fri, 10 June 2005 01:53
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A) Just pull the EFI fuse for 5mins, that cuts power to the ECU but doesn't touch the rest.
B) The ECU is CONSTANTLY learning. Resetting the ECU just reverts it back to factory settings.
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: reset ECU = better performance?
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Fri, 10 June 2005 02:17
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Yep you just remove the EFI fuse for a few minutes.
When you put it back in you repeat the following procedure several times.
1. Start engine.
2. Give it a few seconds to allow the idle to stabilise.
3. Stop engine.
Do the same thing when the engine is cold and at operating temp.
If you don't do this you might find it takes a while for the ECU to learn to idle properly again and you could find yourself konking out at lights for a while until it works out its shit.
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Location:
Arthurs Creek, Victoria
Registered:
May 2002
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Re: reset ECU = better performance?
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Fri, 10 June 2005 07:27
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The ECU isn't going to affect the air flow to the engine. Only your right foot does that.
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