Thread: 1972 911e MFI
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tobluforu tobluforu is online now
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Join Date: Oct 2001
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The idle adjustment at the pump in all honesty doesn't do all that much, but its supposed to affect idle and the transition into the higher rpms. From what I have read its up to about 1600 rpms, but that was years ago I read that and I'm sure the true mfi experts can answer that question. If the car is running great now, leave it be.
Ok, so if the car is idling low, adjust the air correlation screws out. At this point it makes zero difference that they are 3.5 turns out, what matters is that you can turn them counter clockwise and get the idle to 850/950. The 3.5 turns was just a starting point when you adjusted the butterflies. If you can not increase idle this way, then you need to work on the butterflies some more. I went as far as removing all the linkage after the car was warm and adjusting the butterflies so idle was at 900 with the correlation screws all set at 2.5. That was a frickn time consuming hassle.

Good luck
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72 911
Although it is done at the moment, it will never be finished.
Old 12-05-2017, 03:44 AM
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