Apart from the obvious scource with due respect to Alfa owners`s shop what are these cheap chips that are on e-bay for sale and do they work anybody know anything about them,the ones at a starting price of £4.99 they can`t be serious are they?
They change the output from the throttle position sensor to make the ecu think it's open more & so it'll throw more fuel in to the engine. Not the best way of doing it, as the advance would not be adjusted to suit. Think of a carbed engine running rich. I'd say your mpg would fall through the floor.