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Old 08-18-2007, 07:01 AM
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gritsop gritsop is offline
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Just came across my mind,

76Alfasud5M, are you using the original EFI out of the 33 or are you converting to carbs?

A/C setup requires a fast idle valve in order to raise the revs of the engine during A/C operation. This valve actually makes a bypass from the AAV, feeding the engine with more air which eventually raises idle.

In the case of carbs the fast idle bypasses air from the servo brake towards the distributor pneumatic device.

These devices are the same in principle, do the same job either on EFI or Carbs but different in shape, connections etc

Regards
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1991 Alfa 33 1.4 IE
2002 Alfa 147 1.6 T.S.
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