problems with a e46 bmw

Trinidad And Tobago
June 5, 2008 1:37pm CST
i have a e46 bmw 2000 model that has an erratic idle speed,i had a dignostic scan performed on the car and no faults registered, i changed the air flow meter, camshaft position sensor, ignition coil pack and air flow regulator sensor, spark plugs and serviced the fuel injectors and the problem still persists, please help
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