GDI ± Troubleshooting
13A-56
From the previous page
OK
Measure high fuel pressure between the fuel pump (high pressure)
and injector. (Refer to P.13A-97.)
NG
Repair
OK
Check ignition coil spark for each cylinder.
(1) Remove the ignition coil.
(2) Install a new spark plug to the removed ignition coil.
(3) Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
(4) Earth the spark plug electrode securely.
(5) Check that the spark plug ignites when the engine is cranked.
NG
Replace the ignition coil.
OK
Check all the following items:
D Spark plug
D EGR system
D Compression pressure
D Clogged fuel filter, fuel line
NG
Check trouble symptom.
Replace the injector.
OK
INSPECTION PROCEDURE 14
The feeling of impact when accelerating
Probable cause
The cause is probably an ignition leak being generated in line with an increase
in the spark plug request voltage during acceleration.
D Malfunction of the ignition system
NG
Replace the ignition coil.
MUT-II Self-Diag code
Is a diagnosis code displayed?
Yes
(Refer to P.13A-14, INSPECTION CHART FOR DIAGNOSIS
CODES.)
No
MUT-II Data list
79 Throttle position sensor (1st channel) (Refer to P.13A-75.)
NG
Check the throttle valve position feedback system. (Refer to
P.13A-37, INSPECTION PROCEDURE FOR DIAGNOSIS CODE
92.)
OK
Check ignition coil spark for each cylinder.
(1) Remove the ignition coil.
(2) Install a new spark plug to the removed ignition coil.
(3) Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
(4) Earth the spark plug electrode securely.
(5) Check that the spark plug ignites when the engine is cranked.
OK
Check all the following items:
D Spark plug
D Ignition current leak
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