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5.5.10. Malfunctions of the fuel pump

An inspection of operation of the fuel pump is carried out on STOA. It is independently possible to measure fuel supply.

1. Remove the end of the pipeline of return of fuel and lower it in measuring capacity.
2. Distributive TNVD: launch the engine. In the mode of idling 0,25 l for 15 pages have to move.
3. Line TNVD: take out the ignition key that the engine was not started.
4. Turn a starter by means of an auxiliary wire during 30 pages.
5. At the good accumulator the given amount of fuel has to make at least 0,15 l.
6. If the measured amount of fuel is not enough, replace the fuel pump.