Operation CHARM
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Volkswagen
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1991
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Jetta L4-1984cc 2.0L DOHC
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Repair and Diagnosis
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Powertrain Management
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Service and Repair
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Federal Vehicles
Federal Vehicles
EVERY 15,000 MILES (24,000 KM)
On-Board Diagnostic Memory
Readout fault codes
Idle RPM
Check and adjust
EVERY 60,000 MILES (96,500 KM)
Oxygen Sensor
Replace