Operation CHARM
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Audi
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1988
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90 L4-1984cc 2.0L SOHC (3A)
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Air/Fuel Mixture
Air/Fuel Mixture
CO value
0.2% - 1.2%
Differential pressure regulator current
0mA - 5mA, and fluctuating slightly.