
The VAZ-2123 engine is equipped with a microprocessor control system (MSCS), i.e. a distributed fuel injection system with feedback, which combines the inextricably linked power supply and ignition subsystems

Installing wiring harnesses on the body of a VAZ-2123 car
When repairing the electrical equipment of a car, sometimes you have to check all the wiring

You will need: a portable lamp, a set of flat feeler gauges, a ruler, a caliper, a bore gauge, a micrometer, a scraper
After disassembling, thoroughly wash the parts with kerosene, blow and dry them with compressed air (especially the oil channels of the parts)