Quote:
Originally Posted by Alan L
Yep - thinking on it after, it is metered air. So should make no difference.
I have no experience of lambda - both my cars without. But invariably I find if I take the idle from say a lugging 600rpm to 950, I need to tweek the idle mix.
But it must be for a reason other than what I had in mind. My best guess would be with the valve overlap the engine efficiency is different at 600 rpm to 950.
Just went thru this process a few days ago, and did have to tweek the idle mix.
Regards
Alan
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Sounds more like your idle is going off because of a vacuum leak messing with the mix, you adjust the idle back to standard and then you're bandaiding the mix to cover the vacuum leak. I've been in the same boat, and found vacuum leaks later.