Mike's Workshop Manuals
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Audi
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1993
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90 CS, 2.8 J, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics
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Self-Diagnostic System
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Engine Basic Setting (Ecu "B")
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Display Group 01, Field 3, MAF Sensor Ground Irregularity
Display Group 01, Field 3, MAF Sensor Ground Irregularity
If displayed value exceeds .025 volts, check for poor mass air-flow sensor ground.