Contents: Injection warning light on the…🠛 Fuel supply system without return to…🠛 Electric fan control 🠛
The 128-pin ECU 8OSCH-ME 7.4 6 controls the injection system of the L7X engine.
Injection is carried out sequentially in accordance with the firing order of the cylinders (1-6-3-5-2-4).
Ignition system with static distribution of high voltage across spark plugs, with six finger-type coils.
Injection warning light on the instrument panel
Application of a special injection warning lamp (on-board diagnostic system warning lamp "On Board Diagnostic", which lights up for three seconds after the engine is started. The presence of this warning light is due to the installation of the OBD on-board diagnostics system "On Board Diagnostic".
Special precautions due to the presence of the electronic anti-theft engine start blocking system Due to the installation of the third generation electronic anti-theft engine start blocking system, the replacement of the ECU is carried out using a special method.
Attention! When this system is installed, the lock code is stored in the ECU memory for the entire service life.
In addition, this system does not have an unlock code.
For this reason, it is prohibited to carry out checks using ECUs taken from another car, it is impossible to decode such ECUs in the future.
Fuel supply system without return to the tank pressure regulator is located on the fuel pump-sensor unit (fuel level)
Idle mode:
- nominal speed of rotation of the rotor blade is 650 min⁻¹.
Idle speed is adjusted depending on:
- operation of the air conditioning system.
- information from the power steering pressure relay.
- battery voltage.
Maximum engine crankshaft speed 6500 min⁻¹.
The electromagnetic valve for purging the absorber is controlled according to the law of cyclic opening depending on the engine operating mode.
Electric fan control
the engine cooling system and the coolant temperature indicator light on the instrument panel are controlled by the injection system ECU (the "Centralized Coolant Temperature Control" function).
Automatic configuration for operation of the speed controller/limiter and air conditioning system.
The injection system ECU that controls the activation of the air conditioning compressor.
Use of four oxygen sensors installed before and after the catalytic converters.
The intake camshaft phase regulators are controlled by two electromagnetic valves, which are commanded by the injection system ECU depending on the engine speed and load.