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    Re: BMW 318i ,1993,Vin:WBACA0209OAD69828,Bosch M1.7.2 Archived Message

    Posted by Peter Rainsley on April 16, 2008, 7:37 pm, in reply to "BMW 318i ,1993,Vin:WBACA0209OAD69828,Bosch M1.7.2"

    John,
    these mechanical/vane air flow meters were not as precise as the modern hot wire mafs. Remove the cover with a sharp knife around the silicon and slacken the clockspring a notch at a time for the best response. To get an idea of the cars response to 'tweaking', just nudge the arm wiping on the carbon track to see if it needs a slightly stronger signal, Peter

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