Home/Audi/A6/Audi A6 C5 рестайлинг (2001-2004)/Repair manual/Multiport Fuel Injection (mfi) - 3.0l v6 Avk/Installing Engine Control Module (ECM)

Contents

Section: Multiport Fuel Injection (mfi) - 3.0l v6 Avk

Safety precautions

Rules for cleanliness

Technical data

Component locations, overview

Location of Throttle Position (TP) sensor -G79- and Sensor 2 for accelerator pedal position -G185

Removing and installing accelerator pedal module

Location of Fuel pump (FP) relay -J17

Location of Brake light switch -F- and Brake pedal switch (cruise control/diesel direct fuel injection -F47-), Clutch vacuum vent valve switch -F36

Removing and installing switches

Installation positions in E-box, plenum chamber

Assignment of bracket for harness connectors - right side of vehicle

Assignment of bracket for harness connectors - left side of vehicle

Location of Intake manifold change-over valve -N156

Air cleaner, disassembling and assembling

Intake manifold change-over system components, removing and installing

Wiring and component check with test box VAG1598/31

Procedure following interruption of voltage supply

Engine Control Module (ECM), replacing

Installing

Engine Control Module (ECM) (with metal anti-theft housing), replacing

Removing

Procedure

Installing Engine Control Module (ECM)

Test requirements

Test sequence

Significance of 5 -digit readout of display group 056

Fuel pressure regulator and holding pressure, checking

Checking system pressure

Checking holding pressure

Fuel rail with injectors, disassembling and assembling

Checking for leaks

Functional check of fuel pump relay

Checking function

Evaluation of display group 002

Checking wiring to mass air flow (MAF) sensor

Intake manifold change-over

Intake manifold change-over function, checking

Checking heated oxygen sensor (HO2S) learned values and oxygen sensor (O2S) control

Evaluating display group 032

Evaluating display group 033

Test conditions

Check voltage supply for heated oxygen sensor (HO2S) heating

Oxygen sensors and oxygen sensor control behind catalytic converter, checking

Cont.

Special tools and equipment

All

Function of the EPC system

EPC Warning Lamp in instrument cluster

Functional check on warning lamp

Throttle valve control module -J338 -, checking

Throttle valve control module, adaptation

Requirements

Kickdown function, adaptation

Preconditions

Vehicles with multitronic 01J

Wiring for crash signal, checking

Data exchange between engine control module and other CAN-control modules, checking

Checking the bus system

Checking a "two -wire bus system"

VACUUM HOSE DIAGRAM(S)

All sections

Installing Engine Control Module (ECM) Audi A6 C5 рестайлинг

Multiport Fuel Injection (mfi) - 3.0l v6 Avk 1 illustration

Installing Engine Control Module (ECM)

Installation is reverse of removal, noting the following

After repairs are complete, the metal anti -theft housing must be reinstalled. Use new snap -off screws.

After connecting a new Engine Control Module (ECM), the following work steps must be performed

Activate Engine Control Module (ECM) in "Guided Troubleshooting" below subject heading "Engine Control Module (ECM), replacing".

Use VAS5051 tester to do so .

Scheme 353

Scheme 353: Special tools and equipment

Scheme 353: Special tools and equipment

VAS5051 with VAS5051/1