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Discussion Starter #1
To reset the ECU, is it just a case of disconnecting the battery for 30 mins or so ???

cheers
 
M

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Discussion Starter #2
I believe so, i think that's the battery back up time.
I did mine at the weekend, disconnected the battery, touched the leads together for good measure (in case there's any stray capacitance anywhere) and left it for 5 hours. And that worked.
I only left it so long cos i went back to sleep, had a migraine. Woulda left it no longer than an hour otherwise.
 

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It's not a true reset mind you. It'll make the ECU refind it's settings, but it won't reset fault codes or anything.
 
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Discussion Starter #5
Reset the ECU this evening and have driven about 20 miles since. The car is struggling to tick over now :(
I'm assuming it's gonna have to learn all the settings for different engine temperatures, air temperatures, throttle loads and mixtures of all 3 ?????
 
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Discussion Starter #6
Mine took a while to relearn the settings, and my tickover kept dropping to about 600 revs to begin with.
Have done about 60 miles in it and it seems to have settled down.

At least you know the ECU has been reset :D How long did you leave it dosconnected for?
 
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Discussion Starter #7
An hour and a bit including 10 mins "shorting" of the leads.
 
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