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Home >> BMW >> 1990 >> 750iL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnosis 7-Series V12 >> Component Tests >> Co Potentiometer >> Check Function
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Check Function

A voltage of 1.25 volt should be indicated in the basic setting. Precise idle CO tuning (by adjusting the potentiometer) should only take place in conjunction with CO measurement. The typical range is between 1.3-1.5 volt.