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Technical (156)
 Alfa Romeo forum : Technical (156)
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dcdesign
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Posted: 19 May 2005 at 16:27 | IP Logged Quote dcdesign

I printed this out a while ago, but I've lost it and now I cant find it when I searched...

Does anyone have a step by step ECU Reset guide?

Thanks



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clwyd
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Posted: 19 May 2005 at 16:38 | IP Logged Quote clwyd

I think its:

Disconnect the battery for at least 45 mins
Reconnect and start the engine but do not touch the throttle and let the car idle for 15 mins.
Turn the car off and leave for 10 mins.
Start the car and take her for a blast.

I did this last weekend, vast improvement.

Hope this helps you


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Hamishm00
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Posted: 19 May 2005 at 18:16 | IP Logged Quote Hamishm00

Yup, that's the one!
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vildo
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Posted: 20 May 2005 at 00:23 | IP Logged Quote vildo



I did this last weekend, vast improvement.
HI WHAT IS THE IMPROVEMENT ACHIEVED BY RESETING THE ECU?
WHAT IS IT GOOD FOR? IN WHICH CASES SHOULD ONE DO IT?
CHEERS

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daniel_callas
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Posted: 20 May 2005 at 03:09 | IP Logged Quote daniel_callas

Good question Vildo.. i'm wondering the same...
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dcdesign
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Posted: 20 May 2005 at 06:25 | IP Logged Quote dcdesign

Great thanks,

Was there something I remember reading about before disconnecting the battery locking the doors?!?

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dcdesign
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Posted: 20 May 2005 at 09:42 | IP Logged Quote dcdesign

Ok done it...The only prob was that when I went for the drive after the 10min rest...it was peak hour and there was a fair bit of traffic around where I live...

Should this make any difference?

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Lifeboat Man
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Posted: 20 May 2005 at 10:43 | IP Logged Quote Lifeboat Man

The ECU is just learning what the engine is doing from the new 'learning' outputs it gets from the sensors, and not basing the calculations on the outputs over the last couple of months. If you change a component it should really be done so the computer gets a true reading of the information it is getting from the new instruments.

Lets just say the ECU is getting new glasses to look at your engine, if the glasses get dirty and you glean them, then you should reset the ECU as the thresholds will have changed as it can see better. This will effect the engines performance and economy.
I wont damage your engine!
You must do the 10 minute tick over though! the revs will be high at first then drop to normal tick over over a period.

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dcdesign
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Posted: 20 May 2005 at 12:39 | IP Logged Quote dcdesign

The idle is fine now..I did everything I was meant to I think! I can't really tell if its any better yet, will let u know.

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killsta
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Posted: 20 May 2005 at 21:41 | IP Logged Quote killsta

I reset the ECU on mine today, just thought I'd try for the hell of it...

...it feels like a different car

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Frenchie
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Posted: 21 May 2005 at 06:48 | IP Logged Quote Frenchie

Doors locked or unlocked?
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clwyd
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Posted: 21 May 2005 at 08:54 | IP Logged Quote clwyd

unlocked for me

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