Operation CHARM
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Audi
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1998
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A8 Quattro Sedan (4D2) V8-4.2L (ABZ)
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Ignition Timing
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Specifications
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Mechanical Specifications
Mechanical Specifications
Engine codes
ABZ/AEW
Ignition timing
Determined by Motronic Engine Control Module(ECM) (cannot be adjusted)