Design of the ECM (electronic engine management system) ECM installed on cars (electronic engine management system) (fuel injection system) with electronic control unit (controller) type Bosch M 7.9.7. The engines use a system of sequential distributed...
Operation of the fuel injection system The amount of fuel supplied by the injectors is regulated by an electrical impulse signal from the controller. It monitors data on the state of the engine, calculates the need for fuel and determines...
Removal and installation of ECU (electronic control unit) ECU controller (electronic control unit) located under the instrument panel console. For car ECU replacement (electronic control unit) you will need a Phillips screwdriver. 1. Disconnect the wire...
Replacing the coolant temperature sensor DTOZH (coolant temperature sensor) is a thermistor (resistor whose resistance changes with temperature). On the car, the coolant temperature sensor is screwed into the thermostat housing and...
Replacing the knock sensor On the car, the knock sensor, located and attached to the top of the cylinder block, picks up abnormal vibrations (detonation strikes) in the engine. The sensing element of the knock sensor is a...
Mass Air Flow Sensor Replacement By car DMRV (mass air flow sensor) is located between the air filter and the intake pipe hose. DMRV signal (mass air flow sensor) is a DC voltage whose value depends on the amount and direction of...
Speed sensor replacement The vehicle speed sensor is located on the gearbox. When the drive wheels rotate, the speed sensor generates 6 pulses per 1 m of movement, and the controller determines the vehicle speed by the...
Throttle position sensor replacement By car TPS (throttle position sensor) is located on the side of the throttle assembly and is connected to the throttle valve axis. The throttle position sensor is a potentiometer, one end of which is...
Replacement of the gauge of a regulator of idling On a vehicle, the idle air controller regulates the idle speed of the engine by controlling the amount of air supplied to bypass the closed throttle. The idle speed controller consists of a two-pole...
Replacing the crankshaft position sensor The crankshaft position sensor is an inductive type, designed to measure the speed and position of the crankshaft. The crankshaft position sensor is located on the oil pump cover opposite the drive...
Replacing the control oxygen sensor On the car, the oxygen concentration control sensor is used in the feedback fuel injection system and is installed on the top of the catalyst. To correct the calculations of the duration of the...
Replacing the Diagnostic Oxygen Sensor On the car, the diagnostic oxygen concentration sensor is installed in the catalyst behind the converter, it works on the same principle as the control oxygen concentration sensor, and is completely...
Replacing the phase sensor On a car, the phase sensor is located in the cylinder head plug. The principle of the action phase sensor is based on the Hall effect. There is a special pin on the camshaft. When the pin passes...
Rough Road Sensor Replacement On the vehicle, the rough road sensor is installed in the engine compartment on the right mudguard. The principle of operation of the rough road sensor is based on the piezoelectric effect. When...
Removal and installation of the ignition coil To remove, install and replace the ignition coil on a car, you will need a hexagon «by 5». 1. Disconnect the wire from the terminal «minus» battery. 2. Disconnect high-voltage wires from the ignition...
Checking the ignition coil and high voltage wires To check the ignition coil and high voltage wires on a car, you will need an ohmmeter. Short circuit test «mass» ignition coil windings proceed as follows: connect one wire of an ohmmeter to the...
Diagnostic trouble codes of the controller M 7.9.7 Fault code Description of the fault P0102 P0103 Р0112 Р0113 P0116 P0117 P0118 P0122 P0123 P0130 P0131 P0132 P0133 P0134 P0135 P0136 P0137 P0138 P0140 P0141 P0171 P0172 Р0201, Р0202, Р0203, Р0204...