Geely EC715 2009, Workshop Manual

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Step 7
Check whether the intake manifold pressure sensor parameter respond to changes.
(a) Engine Running
(b) Change the throttle position, hold the throttle position,
observe intake manifold pressure sensor parameter value.
Whether the value rapidly changes with the throttle position
changes.
Does intake manifold pressure (MAP) sensor value rapidly change
with the throttle position changes?
Yes
Go to step 9
No
Step 8
Check the intake manifold pressure sensor installation port and vacuum tubes.
(a) Check the intake manifold pressure sensor installation port
and vacuum tubes.
Are the installation port and vacuum tubes blocked?
Yes
Clean and service the intake manifold and
vacuum tubes.
No
Replace the intake manifold pressure sensor.
Step 9 Use scan tool to confirm whether the DTC code is stored again.
(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) Read control system DTC code again to confirm that the
system has no DTC code.
Yes
Diagnostic
No
Step 10
Check ECM power supply circuit.
(a) Check whether ECM power supply circuit is normal.
(b) Check whether ECM ground circuit is normal.
No
Repair the faulty part.
Yes
Step 11
Replace ECM.
(a) Replace ECM.
(b) Carry out crankshaft position sensor self learn. Refer to
2.12.7.11 Crankshaft Position Sensor (CKP) Learn .
Engine Control System JL4G15-D 2-647
EC718/EC718RV EC715/EC715RV 10/2009