BMW 5 series E39

1. Uncover injectors.
2. Start the engine on single turns.
3. On the working engine a stethoscope hear to each injector. Gates of injectors should click at opening and closing.
4. If the stethoscope is not present, it is possible to put a screw-driver or a finger.
5. If unusual noise or its absence is found out, it is necessary to check up pressure, resistance and tightness of injectors.

1. Check up pressure. For this purpose расстыкуйте штекерное connection of injectors also attach диодную a control lamp between contacts of wires of a food. Include a starter. The light-emitting diode should blink.
2. If the diode does not blink, the wire breakage or malfunction of the block of management can be the reason.
3. Switch off ignition.
4. Attach an ohmmeter between both contacts on each injector and measure resistance. If resistance differs from set, replace an injector. Resistance should be 15—17.5 Ohm.
5. If necessary replace a faulty injector.

1. Remove injectors. Топливопроводы do not disconnect from a distributive highway.
2. Attach штепсели to injectors.
3. Lower injectors in capacity.
4. Ask the assistant some seconds to press a starter. Compare character of injection of injectors among themselves. Injection should be cone-shaped and identical at all injectors.
5. Switch off ignition.
6. Disconnect a plug lath of injectors.
7. Include on 5 about ignition, without including a starter. Check up tightness: within one minute one drop, should be formed no more.
8. Establish injectors.