Operation CHARM
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Volkswagen
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1991
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Cabriolet L4-1781cc 1.8L SOHC
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Powertrain Management
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Fuel Delivery and Air Induction
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Air/Fuel Mixture
Air/Fuel Mixture
AIR/FUEL RATIO
Adjustment specification
[1]
0.7%
Checking limits
0.3 - 1.1%
[1]
Ignition timing
,
idle speed
and CO need to be adjusted together to prevent driveablity problems.