On the camshaft there is no sensor B MT of the piston of the first cylinder, therefore, synchronization of the control of the elements of the system with the working process of the engine is carried out according to the program using the signals of the TDC sensor. The engine is started in semi-sequential mode (to synchronize the control of system elements with the working process of the engine), then enters the serial synchronized mode.
K4M engines are equipped with a TDC sensor for the piston of the first cylinder on the camshaft. Synchronization of the control of system elements with the working process of the engine (determination of the TDC of the piston of the 1st cylinder) is carried out according to the signal of this sensor The engine is started in a semi-sequential mode (to synchronize the control of system elements with the working process of the engine). then goes into serial synchronized mode.
Injection warning light on the instrument panel
Installed a special injection signal lamp (OBD warning light «Op Board Diagnostic»). The presence of this warning light is due to the installation of an on-board diagnostic system 08D «Op Board Diagnostic».
Special precautions due to the presence of an electronic anti-theft immobilizer system.
Due to the installation of a third-generation electronic anti-theft engine start blocking system, the ECU is replaced using a special technique.
Attention! When this system is installed, the lock code is stored in the computer's memory for the entire service life.
In addition, this system does not have an unlock code.
For this reason, it is forbidden to carry out tests using ECUs taken from another vehicle.
It is impossible to decode such ECUs later.
Fuel supply system without return to tank (the pressure regulator is installed on the fuel pump-fuel level sensor assembly). Idle mode:
- rated idle speed: 750 min-1;
- idling speed with automatic transmission: 750 min-1.
Idle speed is adjusted depending on:
- operation of the air conditioning system;
- information from the power steering pressure switch;
- battery voltage;
- turning on the heated windshield.
Maximum engine crankshaft speed
When the coolant temperature is below 75 'C for the F4P engine and 60 'C for the K4M engine, or for no more than 10 s, when the engine is running at a crankshaft speed of 5800 min', the fuel supply is stopped for protection «cold» engine.
If the engine is hot, the fuel supply is cut off at the set engine speed:
- in 1st and 2nd gear (depending on SRBCI): 6500 min 1 for the K4M engine and 6300 min-1 for the F4P engine.
- in 3rd, 4th and 5th gears: 6500 min 'for the K4M engine and 6300 min' for the F4P engine.
The canister purge solenoid valve is controlled by a cyclic opening law depending on engine speed and intake manifold pressure.
The engine cooling fan and the coolant temperature warning light on the instrument panel are controlled by the injection computer (Centralized coolant temperature control function).
Automatic configuration for governor/speed limiter and air conditioning system operation,
The injection ECU that controls the activation of the A/C compressor.
The use of two oxygen sensors installed before and after the catalytic converter.
Camshaft phaser controlled by a solenoid valve, to which control commands are given from the injection computer (only on F4P engine).
Motorized throttle valve for air flow and idle control.