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S4 Quattro, Automatic
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Engine Controls - System & Component Testing
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Engine Controls - System & Component Testing
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Introduction
Air Induction System
Electronic Throttle Control
Idle Control System
Intake Manifold Change-Over Valve
Throttle Valve Control Module
Computerized Engine Control
Data Transfer Between Engine Control Module And Can-Bus Capable Control Modules
Engine Control Module
Notes
A4 & S4
Engine Control Module Power Supply Relay
Engine Sensors & Switches
Heated Oxygen Sensors
Notes
Bank 1 Heated Oxygen Sensor 1
Bank 1 Heated Oxygen Sensor 2
Bank 2 Heated Oxygen Sensor 1
Bank 2 Heated Oxygen Sensor 2
Engine Coolant Temperature Sensor
Engine Speed Sensor
Intake Air Temperature Sensor
Knock Sensor
Mass Air Flow Sensor
Throttle Position Sensor
Vehicle Speed Sensor
Exhaust Emission Systems
Secondary Air Injection System
EVAP Emissions System
EVAP Leak Detection System
Fuel System
Notes
Fuel Injector Test
Fuel Injector Electrical Testing
Fuel Injector Leak Test
Fuel Injector Resistance Test
Fuel Injector Quantity Test
Fuel Pressure Release
A4 & S4
Fuel Pressure Test
Notes
Fuel System Pressure
Fuel System Residual Pressure
Fuel Pump
Fuel Pump Activation (A4 & S4)
Fuel Pump Relay
Ignition System
Spark Test
Notes
A4 (2.8L)
Camshaft Position Sensor
Ignition Coil(S)
Misfire Recognition
1.8L Turbo
2.7L & 2.8L
4.2L