Geely EC718 2009 Workshop Manual page 233

Engine
Yes
Check valve timing system.
Step 12
Yes
Check the fuel pressure.
Step 13
Yes
Step 14 Check whether the data in the data stream table is normal.
Yes
Check ECM power supply circuit.
Step 15
Yes
Step 16 Replace ECM.
Next
Step 17 Use scan tool to confirm whether the DTC code is stored again.
Control System JL4G18-D
(a) Refer to the "Engine Mechanical System" in
Chain Cover Replacement, Is valve timing normal?
Adjust the valve timing. Go to step 17
No
(a) Refer to "Fuel System" in
Procedure, Is fuel pressure normal?
Check fuel system: fuel pump, fuel filter, fuel
No
pipe circuit and fuel pressure regulator. Go to
step 17
(a) Check intake air pressure sensor data.
(b) Check engine coolant temperature sensor data.
(c) Check throttle position sensor.
Are these components normal?
Replace the damaged components. Go to
No
step 17
(a) Check whether ECM power supply circuit is normal.
(b) Check whether ECM ground circuit is normal.
Repair the faulty part.
No
(a) Connect scan tool to the datalink connector.
(b) Turn the ignition switch to "ON" position.
(c) Clear DTC code.
(d) Start and run the engine at idle speed to warm up the engine
for at least 5 min.
(e) Road test the vehicle for at least 10 min.
(f) Read control system DTC code again to confirm that the
system has no DTC code.
EC718/EC718RV EC715/EC715RV 10/2009
the2.6.8.9 Timing
the2.3.7.7 Fuel Pressure Testing
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