Injection and engine management system Audi A4 B6, gasoline
Engine management system — design description
It goes without saying that fuel supply and metering, ignition and exhaust gas monitoring in the Audi A4 are state-of-the-art. These tasks are performed by...
It goes without saying that fuel supply and metering, ignition and exhaust gas monitoring in the Audi A4 are state-of-the-art. These tasks are performed by...
Safety precautions when working on the engine management system
Warning! When working with devices included in the engine management system, it should be taken into account that the fuel system is under pressure. Before...
Warning! When working with devices included in the engine management system, it should be taken into account that the fuel system is under pressure. Before...
The most important components of the engine management system
The control unit receives the most important data on the engine operating mode from the following sensors: Air flow meter. The air mass meter is located...
The control unit receives the most important data on the engine operating mode from the following sensors: Air flow meter. The air mass meter is located...
Electronic accelerator pedal
Audi A4 models are equipped with an electronic accelerator pedal. The throttle valve is no longer actuated via a cable pull. There is no mechanical connection...
Audi A4 models are equipped with an electronic accelerator pedal. The throttle valve is no longer actuated via a cable pull. There is no mechanical connection...
Fuel injection system — design description
In principle, there are two options for fuel injection systems: fuel injection using one injector for all cylinders and a multi-point injection system, the...
In principle, there are two options for fuel injection systems: fuel injection using one injector for all cylinders and a multi-point injection system, the...
The principle of operation of the electronic engine control system
During a cold start, the throttle control device increases the amount of intake air. From the coolant temperature sensor, the control unit receives information...
During a cold start, the throttle control device increases the amount of intake air. From the coolant temperature sensor, the control unit receives information...
Fuel Injection Parts
Electric fuel pump delivers fuel through distribution pipe (fuel distributor) to valve injectors. pressure regulator maintains a constant pressure in the...
Electric fuel pump delivers fuel through distribution pipe (fuel distributor) to valve injectors. pressure regulator maintains a constant pressure in the...
Gasoline direct injection
In the summer of 2001, direct fuel injection was successfully implemented for the Audi A4 with a 2.0 liter petrol engine. Only by using gasoline direct...
In the summer of 2001, direct fuel injection was successfully implemented for the Audi A4 with a 2.0 liter petrol engine. Only by using gasoline direct...
What to do if the injection system malfunctions
As mentioned above, in the case of an electronic engine control device, the possibilities for independent action are rather limited. You can't even set the...
As mentioned above, in the case of an electronic engine control device, the possibilities for independent action are rather limited. You can't even set the...
Programming the fuel injection system
When the battery or the plug of the control unit is disconnected, all parameters that are determined during the self-learning of the system are erased. These...
When the battery or the plug of the control unit is disconnected, all parameters that are determined during the self-learning of the system are erased. These...
Visual control of the injection system
If you suspect that the engine and control device are not working as they should, then first of all, check the following parts for cracks and leaks: Vacuum...
If you suspect that the engine and control device are not working as they should, then first of all, check the following parts for cracks and leaks: Vacuum...
Removing valve injectors
To check and, if necessary, replace the injectors, it is necessary to remove the fuel distributor together with the injectors. The nozzles are attached to the...
To check and, if necessary, replace the injectors, it is necessary to remove the fuel distributor together with the injectors. The nozzles are attached to the...
Fuel distributor — design description
The fuel distributors in various engines are arranged in approximately the same way; they are attached to the intake gas pipeline with a variable path length....
The fuel distributors in various engines are arranged in approximately the same way; they are attached to the intake gas pipeline with a variable path length....
Checking valve injectors
The following describes the inspection of injectors using proprietary special tools and equipment. Beaker and auxiliary measuring instruments, wire, clamps...
The following describes the inspection of injectors using proprietary special tools and equipment. Beaker and auxiliary measuring instruments, wire, clamps...
Injector leak test
1. Using the wires that are included in the set of measuring instruments VAG 1594 A, bridge contacts 1 and 65 (1 and 80 in ALT and ALZ engines). In this case,...
1. Using the wires that are included in the set of measuring instruments VAG 1594 A, bridge contacts 1 and 65 (1 and 80 in ALT and ALZ engines). In this case,...
Amount of injected fuel and jet shape
1. Insert the injector to be tested into the beaker from the VAG 1602 fuel injection quantity test kit (or similar vessel). Nozzle in a beaker 2. With...
1. Insert the injector to be tested into the beaker from the VAG 1602 fuel injection quantity test kit (or similar vessel). Nozzle in a beaker 2. With...
Throttle control repair
1. Removal: Remove the storage box on the driver's side. 2. Disconnect the six-pin connector 3. 3. Remove screws 2 and 4 (just three screws) and remove the...
1. Removal: Remove the storage box on the driver's side. 2. Disconnect the six-pin connector 3. 3. Remove screws 2 and 4 (just three screws) and remove the...
Air filter — design description
An engine needs clean air to burn fuel. Particles of dirt and dust on the working surface of the cylinders could damage the engine in a short time. Therefore,...
An engine needs clean air to burn fuel. Particles of dirt and dust on the working surface of the cylinders could damage the engine in a short time. Therefore,...
Replacing the air filter cartridge (ASN engines)
filter element ( it is shown here using the 3.0l ASN engine as an example ) should be changed at least once a year, after two years replacement is mandatory....
filter element ( it is shown here using the 3.0l ASN engine as an example ) should be changed at least once a year, after two years replacement is mandatory....
Indicator of malfunctions of the fuel injection system
Indicator of malfunctions of the fuel injection system
Indicator of malfunctions of the fuel injection system
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Similar sections of other Audi car models:
Power unit: Injection system (gasoline) Audi 80 B3 (1986-1991)
Power unit: Power system (injector) Audi 100 C3 (1982-1990)
Power unit: Fuel injection system Audi A3 Type 8L (1996-2003)
Power unit: Injection system (gasoline) Audi A6 C5 Allroad (1999-2005)
Engine 1.4 l (diesel): Fuel injection system Audi A2 (1999-2005)
Power unit: Injection system (gasoline) Audi 80 B3 (1986-1991)
Power unit: Power system (injector) Audi 100 C3 (1982-1990)
Power unit: Fuel injection system Audi A3 Type 8L (1996-2003)
Power unit: Injection system (gasoline) Audi A6 C5 Allroad (1999-2005)
Engine 1.4 l (diesel): Fuel injection system Audi A2 (1999-2005)
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