Page 239 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

Low Pressure Fuel Shut off Solenoid Test
45 Disconnect the low pressure fuel solenoid two way electrical connector
46 Use a set of 18 SWG jump wire momentarily apply 12V across the terminals of the solenoid

47 Listen the `click’ noise of solenoid. If click noise is not heard then replace the solenoid
48 Reconnect the two way electrical connector
Fuel Injectors Test
49 Turn the ignition switch `OFF’
50 Disconnect the electrical connector at the low pressure fuel shut off solenoid

51 Disconnect the fuel injector electrical connector
52 Use a pair of 18SWG jumper wires, momentarily apply 12V across the fuel injector terminals.
53 Listen the injector click noise.If click noise is not heard, Replace the Injectors.
54 Use an ohmmeter to measure the resistance valve of the injector coil.
55 Compare the measured resistance valve with service manual specification if valve differs, replace the injector

56 Reconnect the electrical connector to the fuel injector
CNG Cylinder Checking
57 Check the cylinder outside visually for any damage.
58 Check the cylinder clamps are properly mounted or not.

59 Check the next testing due dater of the cylinder.
Note: Testing date generally stamped on the cylinder and name plate which is tagged near the
cylinder.

60 Test the CNG cylinder at authorised CNG Cylinder Testing workshop

Note: Generally CNG Cylinder life is given for 10 years. Every three years once it has to be tested.

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CITS : Automotive - Mechanic Diesel - Exercise 14.3