Geely JL481Q, Руководство пользователя

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Fig. 225 Fix a new O-ring on the fuel pressure regulator Fig. 226 Install the fuel pressure regulator on the fuel transmission pipe
Fig. 227 Use a stethoscope to check the injector’s running sound Fig. 228 Examine the injector’s fuel injection manually
4. Start the engine and check whether there is any fuel leakage.
(2) Use a multi-meter to measure the resistances
between its terminals, which should range from 14.0ohm
to 15.0ohm (See Fig. 2-229) at the temperature of 20°C.
If not so, replace this injector.
(3) Connect the injector’s connector again.
Injector detaching (See Fig. 230):
1. Remove the No. 1 PCV hose (a forced ventilation
hose for the crankcase) (See Fig.231).
II. Injector Examination
Fig. 229 Use a multimeter to examine the resistance between the
injector’s terminals
New O-ring
Ohmmeter
Examination on the car:
1. Examine each injector’s working condition
Examine each injector’s running sound and atomization.
(1) Use a stethoscope to check whether the engine’ running noise is normal when it is running or starting, i.e. whether the
strength of its running noise is proportional to its speed (See Fig. 227).
(2) If no stethoscope is available, you can check each injector’s fuel injection manually. If there is no or abnormal sound,
you shall examine the conducting wire’s terminal, the injector or the fuel injection signal from ECU. (Fig. 228)
2. Examine each injector’s resistance
(1) Remove the injector’s connector.
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