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Originally Posted by waggaclint
its a no no on efi cars just like on gas cars as well....if it doesnt start easy with no accel there is a problem...ive seen plenty of people flood efi cars by doing this....
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Not quite true, an EFI system won't flood an engine when the throttle is used. In fact it does the opposite, and creates a leaner mixture.
Some manufactures do actually advise using part throttle on very hot days (40> deg) if the engine doesn't start within a couple seconds. I think even Ford do, or at least they used to.
Opening the throttle simply allows a leaner mixture, something which the
IAC may potentially not provide on extremely hot days.
I've actually never needed to do this on any EFI car I've owned, and I can't say I know anyone who has needed to do so.
Either way, it certainly won't do any harm, however it almost always isn't needed.
Rick.