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Volkswagen
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1991
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GTI L4-1781cc 1.8L SOHC (PF)
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Repair and Diagnosis
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Powertrain Management
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Engine Control Module
Engine Control Module
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Description and Operation
California Vehicles (Digifant I)
Federal Vehicles (Digifant II)
Testing and Inspection
Component Tests and General Diagnostics
California Vehicles (Digifant I)
Control Unit
Resetting Digifant I Control Unit
Federal Vehicles (Digifant II)
Pinout Values and Diagnostic Parameters
Adjustments
Locations
Digifant II Control Unit (Federal)
Digifant I Control Unit (California)
Service and Repair
California Vehicles (Digifant I)
Federal Vehicles (Digifant II)
Diagrams
Diagram Information and Instructions
Understanding Track Style Wiring Diagrams, Important Stuff !
How to Find the Correct Wiring Diagram, Important Stuff !
How to Read Displayed Page of Wiring Diagram, Important Stuff !
Wiring Diagram Circuit Identification
Symbols Used In Wiring Diagrams
Wire Color Code Identification
Wire Size Conversion
Connector Views
California Vehicles (Digifant I) 38-Pin Connector
Federal Vehicles (Digifant II) 25-Pin Connector
Electrical Diagrams
Specifications
California Vehicles (Digifant I)
Federal Vehicles (Digifant II)
Technical Service Bulletins
