Engine Electrical System

tube clamp to stop the fuel return in order
to verify that the fuel pressure can be
established quickly.
No
Repair or replace the
fuel injector or the fuel
pipe.
Yes
Repair or replace the
fuel air inlet pipe. 12
Verify that the fuel inlet pipe has any
leakage or blockage.
No Replace the fuel pump.
Yes
Repair or replace the
fuel return pipe.
13
Verify that the fuel return pipe has any
leakage or bending.
No
Replace the fuel
pressure regulator.
Yes Proceed to next step.
14
Run the engine at idle speed until the
coolant temperature reaches its normal
value in order to verify that the ignition
advance angle is normal.
No
Adjust the ignition
advance angle.
Yes
Replace the coolant
temperature sensor.
15
Disconnect the coolant temperature sensor
to verify that the engine is normal.
No Proceed to next step.
Yes Proceed to next step.
16
Verify that the compression pressure of
engine cylinder is normal.
No Fix the malfunction.
Yes Proceed to next step.
17
Verify that the resistance of each cylinder
high voltage cable is normal.
No Replace
Yes Replace
18
Verify that the ignition coil and high
voltage cable have any damage parts or
cracks.
No Proceed to next step.
Yes Replace the ECU.
19 Verify that the spark plug is normal.
No Replace the spark plug.
E-77
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