Technical Anyone explain this to me!

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Technical Anyone explain this to me!

corky

Mk2 Punto Sporting 1.2
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Right was changing the sidelights this morning when I put the bulbs in I turned the key onto stage 1 and this buzzing noise (really loud) was coming from the ecu and it didn't stop could anyone explain what it is doing ImageUploadedByFIAT Forum1396970766.405846.jpg
 
Right was changing the sidelights this morning when I put the bulbs in I turned the key onto stage 1 and this buzzing noise (really loud) was coming from the ecu and it didn't stop could anyone explain what it is doing View attachment 133998

It's the throttle body under the ECU completing a throttle possition relearn (y)
 
Lol dude, I asked the same thing a few months ago its nothing to worry about

I thought i had buggered something whilst replacing the bulbs
 
Right was changing the sidelights this morning when I put the bulbs in I turned the key onto stage 1 and this buzzing noise (really loud) was coming from the ecu and it didn't stop could anyone explain what it is doing View attachment 133998

My 16v does the same,
buzzing noise stops or seems to stop once engine is running.

ionce asked a fiat specialist about it and he said its normal & not to worry about
it,
 
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