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Discussion Starter · #1 ·
Well finishing of the home made CIAS at the week end when checking all was well I noticed a clunk form around the throttle bidy when turning the car off. It sounds like the butterfly is closing.

It may have always done this and I have never noticed it before.

I have not run the car since to warm it up so it may be something to do wiht the cold running setting (choke type thing)

Can someone check to see if their's does this when turned off either when cold and when warm?
 

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Quite possible it goes through an opening/closing cycle when you switch off, maybe even parks itself in the open position then closes again when you start it up.
Either way, as above it's normal and nowt to worry about
 
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