Geely EC718 2009 Workshop Manual page 726

2-644 Control System JL4G15-D
Yes
System normal, diagnostic completed.
Step 9
5. Repair Instructions:
Intake VVT Actuator can only be replaced as an assembly. Do not disassemble it and repair. VVT actuator
replacement2.6.8.12 Camshaft
2.12.7.16 DTC P0068 P0106
1. DTC Descriptor:
DTC P0068
DTC P0106
Intake Manifold Absolute Pressure (MAP) Sensor measures intake manifold pressure changes caused by the engine load, intake
manifold vacuum and engine speed changes, and convert these changes into voltage output and send to the engine Control Module
(ECM). At the same time the engine control module (ECM) compares the actual and expected intake manifold absolute pressure
changes based on the throttle position opening change, to determine whether the intake manifold absolute pressure sensor responds
to throttle position opening change and whether or not set DTC P0106.
Engine Control Module (ECM) detects air flow based on the intake manifold pressure sensor and intake air temperature sensors
measured data and compare the sir flow with expected air flow based on throttle position sensor. If the engine control module (ECM)
detects that the intake manifold absolute pressure / temperature sensor detected actual air flow and expected air flow based on
throttle position sensor is inconsistent, it will set DTC P0068.
2. Conditions For Setting DTC and The Fault Location:
DTC Code DTC Detection Strategy
Difference between intake
manifold absolute pressure /
temperature sensor detected
P0068
air flow and the expected air
flow based on throttle position
is 9g/s.
EC718/EC718RV EC715/EC715RV 10/2009
Replacement.
Electronic Throttle Air Flow Error
Intake Pressure / Throttle Position Fault
Conditions For Setting The DTC (Control
1. Engine Running
2. No Intake Air Pressure / Temperature
Sensor Fault
3. Duration Longer Than 4 s
(c) Press the scan tool power button.
(d) Select the following menu items: Engine/Read DTC codes.
(e) Read DTC codes.
Any DTC code?
Intermittent Fault. Refer to
No
2.12.7.4 Symptoms Table
Strategy)
Fault Locations
1. Intake Manifold Pressure /
Temperature Sensor
2. Intake Manifold and Vacuum Tube
3. Throttle
4. ECM
Engine