Gasoline engine injection system BMW 7 Series E32

Petrol injection system. general description
Motronic DMEM 1.1-1.3 system diagram 1 - fuel tank; 2 - fuel pump; 3 - fuel filter; 4 - fuel pressure regulator; 5 - ignition coil; 6 - air flow meter; 7 -...

Diagnostic device memory
The electronics of the control unit detects malfunctions in the injection system and in the ignition system, such as faulty sensors, disconnected plugs and...

Precautions and rules for working with the injection system
Attention: When working on the fuel system, attention must be paid to cleanliness. The fuel system is under pressure. Therefore, before replacing parts, you...

Operation of the injection system
Fuel is sucked from the fuel tank by an electric fuel pump and fed through the fuel filter to the distribution pipe and then to the injectors. The pressure...

Ignition and injection systems — check
For intelligent and efficient troubleshooting, it is necessary to use special measuring instruments, which are very expensive and usually only available in...

Accelerator cable — adjustment
Attention: cable «gas» very sensitive to kinks and therefore must be handled with great care during installation. One slight kink during further work can...

Throttle body — removal and installation
Throttle body made up of ASC+T body (automatic stability control and traction control) and main body. Withdrawal Remove the plugs by compressing the wire...

Idle speed control valve — check, removal and installation
The idle speed control valve is located on the intake manifold and is connected by hoses to the throttle body. Caution: To check if the idle air control valve...

Temperature sensor — check, removal and installation
Two temperature sensors measure the temperature of the coolant and incoming air and transmit information to the control unit. Sensors have an operating element...

Injectors — check
The injectors inject fuel in batches. In this case, the jet of fuel from the nozzle has the shape of a cone, and the nozzle closes tightly after injection....

Nozzles — removal and installation
New nozzles are protected with preservative. After about 5 minutes of operation, they are cleaned by the fuel passing through them. Injectors removed from the...

Diagnostics of malfunctions of system of injection of gasoline
Before starting the troubleshooting procedure, the following test conditions must be met. It is necessary to exclude errors during startup. When starting, both...

Self-diagnosis. general description
Engine management systems installed on BMW vehicles are mainly manufactured by Bosch and include the following systems: Bosch Motronic versions 1.1 / 1.3; 1.2;...

Reading fault codes
Reading fault codes without a fault code reader - flash codes Bosch Motronic 1.1 and 1.2 systems By flashing the CHECK ENGINE indicator lamp installed on the...

Guidance on conducting inspection procedures
To check the control unit for fault codes, use a DTC reader or read the codes manually. There are codes in memory If the presence of one or more fault codes is...