5.1.12. Fuel nozzles
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Fuel nozzles on the basis of signals from the ESM block inject fuel into engine cylinders. The amount of the given fuel depends on time of the opening of nozzles, i.e. from width of an impulse of tension given on a nozzle winding.
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Check with use of a stethoscope
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- During the operation of the engine idling a stethoscope check work of nozzles on existence of clicks. At increase in frequency of rotation of a bent shaft clicks have to sound more often.
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Guarantee that clicks from an adjacent nozzle were not transferred on the highway to an idle nozzle. |
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- In the absence of a stethoscope a finger of a hand check work of nozzles on existence of clicks. If clicks are absent, check reliability of connection of sockets to nozzles and the output tension of the control unit.
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Measurement of resistance between contacts of the socket
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- Disconnect the socket from a fuel nozzle and measure resistance between contacts of the socket. Resistance: 15,9±0,35 Ohms at 20 °C.
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- Connect the socket to a fuel nozzle.
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