12. Ineffective acceleration or flameout
Table 1-62
S/N Operation Test Results Actions
Yes Remove the trouble
1
Turn the ignition switch to ON. Check if there is
trouble information records with a diagnostic
instrument.
No Next step
Yes Next step
2 Check the air filter for smoothness.
No Replace
Yes Next step
3
Run the engine at an idle speed. Check if the rotation
speed is normal.
No
Next step:
Check and repair as per idle
speed trouble items
Yes Next step
4
Run the engine at an idle speed. Check if the intake
air pressure is between 35kPa and 65kPa.
No Check and repair
Yes Next step
5
Run the engine at an idle speed. Check if the ignition
advance angle is normal after the coolant reaches
normal operation.
No
Adjust ignition advance
angle
Yes Next step
6
Connect the fuel pressure gauge valve. Short-circuit
the pin J1-47 and the pin J1-73 of the fuel bump relay,
and run the fuel pump. Check if the fuel pressure is
about 300kPa.
No 10
Yes 9
7
Connect the battery and the fuel injector with a special
connector. With the voltage supply of 12V, check the
fuel injector for normal operation.
No Next step
Yes Next step
8
Wash the fuel injector and check the fuel injector
again for normal operation.
No Replace fuel injector
Yes Replace fuel
9 Check if the fuel is wrong or contains water.
No 15
Yes Next step
10 Check if the fuel pressure is lower than 250kPa.
No 14
Yes Next step
11
Close the fuel gauge valve. Turn on the ignition switch
again and keep the fuel pump working for 3 seconds.
Check if fuel pressure can be produced.
No 13
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