Engine management system VAZ-2107

Description of the design of the engine management system
Elements of the engine management system: 1 - diagnostic socket; 2 - tachometer; 3 - control lamp for a malfunction of the engine management system; 4 - throttle position sensor;...

Precautions when repairing the engine management system
Attention! Do not touch the computer terminals with your hands - the engine control system is microprocessor-based, the electronic components of the computer can be damaged by...

Fuses and relays of the engine management system — replacement
Attention! All work related to the replacement of fuses and relays must be carried out only after disconnecting the wire from the battery terminal. Attention! Before replacing a...

Electronic control unit (ECU) — removal and installation
Attention! Disconnect the wiring harness block from the computer only after disconnecting the wire from the battery terminal. Removing 1. We prepare the car for operations (see "...

Crankshaft position sensor — check and replace
You will need a multimeter to do the job. Removing 1. We prepare the car for operations (see " Vehicle preparation for maintenance and repair "). 2. Having released the latch,...

Coolant temperature sensor — check and replace
To complete the work you will need: a multimeter, a thermometer (with a measurement limit of at least 100°С), a small heat-resistant container with a volume of about 0.5 liters...

Throttle position sensor — check and replace
You will need a multimeter to do the job. Execution sequence 1. We prepare the car for the operation (see " Vehicle preparation for maintenance and repair "). 2. We release the...

Mass Air Flow Sensor — Check and Replace
You will need a multimeter to do the job. Execution sequence 1. We prepare the car for operations (see " Vehicle preparation for maintenance and repair "). 2. By pressing the...

Oxygen concentration sensor — check and replacement
Attention! The sensor is installed in the downpipe of the exhaust system, which heats up to a high temperature when the engine is running. To avoid burns, the oxygen concentration...

Speed sensor — removal and installation
Removing 1. We install the car on a viewing hole or overpass (see " Vehicle preparation for maintenance and repair "). 2. Using a slotted screwdriver, loosen the knurled nut,...

Ignition coil — check and replacement
You will need a multimeter to do the job. Execution sequence 1. We prepare the car for operations (see " Vehicle preparation for maintenance and repair "). 2. Having released the...