Engine Electrical System

Yes
Repair or replace the
fuel air inlet pipe.
13
Verify that the fuel inlet pipe has any
leakage or blockage.
No Replace the fuel pump.
Yes
Repair or replace the
fuel return pipe.
14
Verify that the fuel return pipe has any
leakage or bending.
No
Replace the fuel
pressure regulator.
Yes Proceed to next step.
15
Turn the ignition switch to “ON” position
and connect the adaptor between ECU and
the wiring harness. Verify that the
voltages at following pins of ECU
including signal output terminal and
grounding terminal of the throttle position
sensor, and pins of 32# and 33# (used as
sensor’s power supply of 4.5-5V) are
normal.
No
Repair or replace the
wiring harness.
Yes Replace the ECU.
16
Verify that the ignition coil, the high
voltage cable and the spark plug are
normal.
No
Repair the relevant
parts.
E-83
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