Audi A4

Since 1994 of release

Repair and car operation

The gasoline expense

To hi-tech engines Audi electronics too helps a few to bridle thirst the engine. At walking speed Audi 8,5 l on 100 km completely can manage. On the other hand, will not make a problem to increase the expense of fuel more than to 12 l by 100 km.

Injection

In the six-cylinder engine with working volume 2,8 l the system of injection MPI is established. Behind abbreviation MPI reduction of English name Multi Point Injection – multidot injection disappears. (An identification sign of system of injection MPI the measuring instrument of a stream of fresh air in воздухозаборном a hose behind on the right in an impellent compartment is.)

System of injection of fuel MPFI of the engine almost identical to it of 2,6 l is named by this abbreviation only for difference which is deciphered as Multi Point Fuel Injection – multidot injection of fuel. (An identification sign: absence of a measuring instrument of a stream of fresh air.)

Distinctive sign of these two systems is the way of measurement of quantity (or weights) soaked up air:

• MPI does it by means термоанемометрического a wire flowmeter of air.
• In MPFI for these purposes the gauge of pressure of air in an inlet collector (it is built in the block of management and is connected by a hose with an inlet collector), and also the gauge of temperature of soaked up air (in an inlet collector) is used.