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Engine
Yes
Read the throttle position sensor data.
Step 3
Yes
Step 4
Read the pre-catalytic oxygen sensor data.
Yes
Observe the long-term fuel adjustment parameter.
Step 5
No
Check engine and its components.
Step 6
Control System JL4G18-D
Refer to
No
P0108
(a)
Start the vehicle.
(b)
Warm up the engine with normal idle speed and throttle
opening is less than 10%.
(c)
Use scan tool to read throttle position sensor data.
Is throttle position sensor data normal?
Refer to
No
(a)
Start the vehicle.
(b)
Warm up the engine with normal idle speed.
(c)
Read the pre-catalytic oxygen sensor data.
Pre-Catalytic oxygen sensor standard value: 0.2-0.8 V
Is pre-catalytic oxygen sensor data is normal?
Refer to
No
P0133 P0134 P2195 P2196
(a)
Start the vehicle.
(b)
Warm up the engine.
(c)
Observe the long-term fuel adjustment parameter.
Is the long-term fuel adjustment parameter normal?
System normal.
Yes
(a)
Turn the ignition switch to "OFF" position.
(b)
Check the vacuum hose crack, kink or connections.
(c)
Check the intake manifold, throttle body and fuel injector
vacuum leakage.
(d)
Check the crankshaft ventilation system leakage.
(e)
Check fuel contamination.
(f)
Check the fuel system working at air-fuel ratio too lean.
(g)
Check injector nozzle spray fuel too lean.
(h)
Check the fuel system working at air-fuel ratio too rich.
(i)
Check injector spray fuel too rich.
(j)
Check intake manifold collapse or obstruction.
EC718/EC718RV EC715/EC715RV 10/2009
2.2.7.17 DTC P0105 P0106 P0107
2.2.7.20 DTC P0122 P0123
2.2.7.21 DTC P0130 P0131 P0132
2-125
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