Lifan 620 Maintenance Manual page 80

S/N
Run the engine at an idle speed. Check if the ignition
6 advance angle is normal after the coolant reaches
normal operation.
Check if the sense hole of the intake air manifold
7
pressure and temperature sensor is blocked.
8 Check if the fuel is wrong or contains water.
Connect the battery and the fuel injector with a special
9 connector. With the voltage supply of 12V, check the fuel
injector for normal operation.
Check the resistance of the high voltage wire for each
10
cylinder. Is the resistance OK?
11 Check the ignition coil for damage or crack.
12 Check the spark plug for normal operation.
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Table 1-60 (Continued)
Operation
79
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Test Results Actions
Yes Next step
Adjust ignition advance
No
angle
Yes Clean up
No Next step
Yes Replace fuel
No Next step
Yes Next step
Check and repair fuel
No
injector and relevant harness
Yes Next step
No Replace
Yes Replace
No Next step
Yes Replace ECU
No Replace spark plug