BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. The engine
+ 4. Cooling system
+ 5. Heating and ventilation
- 6. Fuel system
   6.2. Specifications
   6.3. Check of system of injection
   6.4. A measuring instrument of a stream of air
   6.5. A throttle branch pipe
   6.6. A regulator of pressure of fuel
   6.7. An atomizer of start-up of the cold engine and a thermotimer
   6.8. Check and replacement of atomizers
   6.9. The air proof-reader of idling
   6.10. An order декомпрессии fuel system
   6.11. Check of pressure of fuel
   6.12. The fuel pump, the pump of pumping and the gauge of level of fuel in a tank
   6.13. Gasoline pipe lines and the union
   6.14. A fuel tank
   6.15. The air filter
   6.16. A cable of a drive throttle заслонки
   6.17. The carburettor
+ 7. An exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. A running gear
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice

6.6. A regulator of pressure of fuel

Regulator of pressure of fuel

The regulator is informed with a cavity of a soaking up collector through a vacuum hose.

Bolts of fastening of a regulator of pressure of fuel (system L-Jetronic)

1. A suppressor of pulsations

2. Fastening bolts

3. A vacuum hose

Bolts of fastening of a regulator of pressure of fuel (system Motronic)

A.Bolty of fastening

V.Obratnyj a gasoline pipe line

S.Shlang of a regulator


1. Execute декомпрессию.
2. Disconnect the battery from weight.
3. Disconnect from a regulator a fuel hose and on its place establish a manometre.
4. Attach the battery, connect the pump, include ignition and check up presence подтеканий fuel.
5. Attach the vacuum pump to the place of a vacuum hose, include the fuel pump. Consider pressure of fuel at depression creation on a regulator and without depression. Pressure of fuel should decrease in process of depression increase.
6. Attach a vacuum hose, start the engine and consider pressure of fuel idling. Disconnect a vacuum hose, – thus pressure should increase sharply.
7. If pressure low press a return gasoline pipe line. If thus pressure does not increase, the fuel pump is faulty or the direct gasoline pipe line is littered. If pressure sharply increases, replace a pressure regulator.
8. If pressure too high stop the engine, disconnect and blow a return gasoline pipe line. If the return gasoline pipe line is not littered, replace a pressure regulator.
9. If pressure change does not correspond described check up depression on a regulator, having attached to the place of a vacuum hose вакууметр (the engine should idle).
10. If depression is, a pressure regulator replace. Otherwise believe tightness of a hose and the union on vacuum connection.


1. Execute декомпрессию and disconnect the battery from weight.
2. Disconnect from a regulator return fuel and vacuum hoses. Turn away bolts of fastening (arrow) and remove a regulator.
3. Installation is carried out upside-down. Replace a ring lining.