b4_motronic_vr6_aaa_02.pdf

2.8 Liter VR6 2V Generic Scan Tool Fuel Injection & Ignition,

Engine Code(s): AAA m.y. 1996-1997

20 - Fuel Supply

Fuel supply system components, removing and installing

Fuel tank with attachments and fuel filter, removing and installing

Safety precautions when working on fuel supply

Rules of cleanliness

Fuel Pump (FP), removing and installing

Fuel pump, checking

EVAP canister system

EVAP canister system, components, removing and installing

(vehicles without Leak Detection Pump)

EVAP canister system components, removing and installing

(vehicles with Leak Detection Pump)

Fuel tank ventilation, checking (vehicles without Leak Detection

Pump)

EVAP canister system for proper seal, checking (vehicles with Leak

Detection Pump)

Evaporative Emission (EVAP) canister purge regulator valve 1,

checking

Leak Detection Pump (LDP), checking

Accelerator Pedal (AP) cable, adjusting

Vehicles with manual transmission

Vehicles with automatic transmission

24 - Multiport Fuel Injection (MFI)

Motronic fuel injection and ignition system

Component locations overview

General Notes on Fuel Injection

Fuel injection system components, removing and installing

Fuel distributor with fuel injectors, disassembling and assembling

Throttle valve control module, removing and installing

Air filter, disassembling and assembling

Safety precautions

Rules of cleanliness

Technical data

Engine components,checking

Oxygen sensor heater for oxygen sensor before Three Way

Catalytic Converter (TWC), checking

Oxygen sensor heater for oxygen sensors behind Three Way

Catalytic Converter (TWC), checking

Mass Air Flow (MAF) sensor, checking

Throttle valve control module, checking

Engine Coolant Temperature (ECT) sensor, checking

Intake Air Temperature (IAT) Sensor, checking

Engine speed (RPM) sensor, checking

Fuel injectors, checking

Fuel pressure regulator and residual pressure, checking

Intake system for leaks (false air), checking

Function tests

Oxygen sensor and oxygen sensor regulation before catalytic

converter, checking

Oxygen sensor and oxygen sensor regulation behind catalytic

converter, checking

Engine Control Module (ECM)

Function

Voltage supply for Engine Control Module (ECM), checking

Engine Control Module (ECM), replacing

Additional signals, checking

Speed signal, checking

26 - Exhaust system, Emission controls

Exhaust system components, removing and installing

Exhaust manifold, front exhaust pipe and catalytic converter with

attachments

Mufflers with mounts

Three Way Catalytic Converter (TWC), checking

Secondary Air Injection (AIR) system

Function

Secondary Air Injection (AIR) system components, removing and

installing

Secondary Air Injection (AIR) system, checking for proper seal

Secondary Air Injection (AIR) valve, checking

Secondary Air Injection (AIR) pump motor, checking

Combination valve, checking

28 - Ignition/Glow plug system

Ignition, servicing

General notes on ignition system

Ignition components, removing and installing

Safety precautions

Test Data, Spark Plugs

Camshaft Position (CMP) sensor, checking

Knock sensors, checking

Ignition coil, checking

38 - Automatic Transmission - Gears, Hydraulic controls

Transmission control electrical components, removing and

installing, checking

Safety precautions

Electrical/electronic components and component locations

Multi-Function Transmission Range (TR) Switch, checking

Transmission Vehicle Speed Sensor (VSS), checking

Vehicle Speed Sensor (VSS), checking

Transmission Fluid Temperature Sensor, checking

Solenoid valves in valve body, checking

Transmission Control Module (TCM)

Function

Transmission Control Module (TCM), replacing

ST - Generic Scan Tool

General information for On Board Diagnostic (OBD)

Characteristics of On Board Diagnostic (OBD)

On Board Diagnostic (OBD), technical data

Diagnostic tester, connecting

Test box, connecting for wiring test

Diagnostic function, selecting

Address word 33 - On-Board Diagnostic (OBD)

Diagnostic mode 1: Check measured values

Diagnostic mode 2: Check operating conditions

Diagnostic mode 3: Check DTC Memory

Diagnostic mode 4: Reset/erase diagnostic data

Diagnostic mode 5: Check output of oxygen sensor signals

Diagnostic mode 6: Check test results of components that are not

continuously monitored

Diagnostic mode 7: Check test results

Diagnostic mode 8: Tank leak test

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