Mono-Motronic Fuel Injection System General description AUDI 80 gasoline engines have a fuel injection system through a single throttle valve nozzle, developed by BOSCH and named «Mono-Motronic»....
Operation of the Mono-Motronic system Starting a cold engine The fuel injection system electronic control unit receives information about the engine temperature from the coolant temperature sensor....
Fuel injection system — check Independent performance of all types of checks of the fuel injection system by a motorist is impossible due to the lack of necessary instrumentation. Using the...
Idling and CO content in exhaust gases — check Idling adjustment for engines with a Mono-Motronic fuel injection system is not needed, because it is corrected if necessary by the electronic control unit....
Cable «gas» — replacement Cable «gas», which is driven by the accelerator pedal and throttle valve, is very sensitive to kink. When working in the engine compartment, be careful with...
Digifant fuel injection system General description In terms of the accuracy of supplying the air-fuel mixture of fuel, the fuel injection system through one nozzle under the throttle valve...
Operation of the Digifant system Starting a cold engine When starting a cold engine, the idle air stabilization valve through a separate channel increases the intake air. At the same time, the...
Fuel injection system — check Self-checking the Digifant fuel injection system is almost impossible for the reason that this requires, first of all, appropriate instrumentation and a good...
Nozzles — removal and installation 1. Disconnect the vacuum supply hose from the intake manifold to the vacuum brake booster. 2. Disconnect the valve of stabilization of idling together with the...
Idling and CO content — check Idle speed adjustment on vehicles with Digifant power system is not needed, because this system «self-taught». This means that the electronic control unit, if...
Fuel injection system KE-lll-Jetronic Gasoline engines equipped with a fuel injection system take in and let in clean air. The injection system mixes a certain amount of fuel into it. Fuel is...
Fuel injection system KE-III-Jetronic — check The motorist is not able to carry out the overwhelming number of possible checks of the injection system on his own, because these checks must be carried out...
Idling and CO content — check AUDI 80 cars with a five-cylinder engine have automatic idle control. It is not possible to adjust the idle speed. It can only be verified. If the verification...
MPI and MPFI multipoint fuel injection systems general description AUDI 80 vehicles with a 2.8-liter six-cylinder engine have an MPI multipoint injection system. The abbreviation MPI is derived from the...
Operation of the MPI/MPFI fuel injection system When the engine is running, as a result of the movement of the pistons, air is sucked into the cylinders. When the accelerator pedal is fully depressed, the...
Fuel injection system — check The electronic control unit is able to recognize approximately 30 malfunctions of parts of the ignition and fuel injection systems. Fault messages that have...
Idling and CO content — check Six-cylinder engines have automatic idle control. Manual idle adjustment is not possible. The operation of the engine at idle can only be checked. If the test...