Geely EC718 2009 Workshop Manual page 741

Engine
Next
Note
It is prohibited Connect intake manifold absolute pressure sensor 5 V reference voltage circuit and other components,
otherwise it will damage the sensor and ECM.
Step 2 Measure intake air pressure and temperature sensor resistance.
Intake Air Temperature/Pressure Sensor
Yes
Measure intake air temperature pressure sensor signal circuit.
Step 3
Intake Air Temperature/Pressure Sensor Harness
Connector EO16
1 2 3 4
Yes
Measure intake air temperature pressure sensor ground circuit.
Step 4
Check the existence of the following conditions:
(a) Sensor housing is damaged.
(b) Sensor loose or improperly installed.
(c) Sensor wiring harness connector loose.
(a) Turn the ignition switch to "OFF" position.
(b) Disconnect intake air pressure and temperature sensor
wiring harness connector EN16.
(c) Measure intake air temperature sensor resistance.
Standard Resistance: (Refer to the specific
parameters2.2.1.2 Temperature Sensor Temperature and
Resistance Correlation): 2,400 Ω/20°C(68 ºF)
(d) Connect intake air pressure and temperature sensor wiring
harness connector EO16.
Is the resistance specified value?
No
FE02-5024b
(a) Turn the ignition switch to "OFF" position.
(b) Disconnect intake air pressure and temperature sensor
wiring harness connector EO16.
(c) Turn the ignition switch to "ON" position.
(d) Measure voltage between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.2 and a reliable ground.
Standard Voltage: 4.7-5.5 V
(e) Connect intake air pressure and temperature sensors
connector EO16.
Voltage normal?
No
FE02-5341b
Control System JL4G15-D
Replace the intake air pressure and
temperature sensor. Go to step 9
Go to step 5
EC718/EC718RV EC715/EC715RV 10/2009
2-659