Geely EC718 2009 Workshop Manual page 800

2-718 Control System JL4G15-D
No
Note
Prior to the implementation of this program, the following conditions must be met:
1. Disconnect all fuel injector connectors.
2. Engine running time must not be longer than 5 s.
Check whether the spark plug arcing is normal.
Step 5
Yes
Check the misfire cylinder compression pressure.
Step 6
No
Check the cause of cylinder compression pressure too low. Refer to the "Engine Mechanical System" in
Step 7
the2.6.7 Diagnostic Information and
Check fuel and misfire cylinder fuel injectors.
Step 8
No
Note
Prior to the implementation of this test, the following conditions must be met:
1. Disconnect all fuel injector connectors.
EC718/EC718RV EC715/EC715RV 10/2009
Yes
(a) Test the spark.
(b) Remove misfire cylinder ignition wires.
(c) Disconnect all fuel injector cylinder connectors.
(d) Install the ignition wires to the spark plug.
(e) Run the engine (the engine running time no longer than 5s)
and check the arcing.
(f) Reconnect all cylinder fuel injector connectors.
(g) Install the ignition wires.
Is spark plug arcing normal?
No
(a) For detailed steps. Refer to .
Is cylinder compression pressure normal?
Yes
Procedures.
(a) Check whether there is fuel injectors leakage and stagnate.
(b) Check fuel quality.
Is there above mentioned fault?
Yes
Replace the spark plug. Refer to
2.10.8.4 Spark Plug Replacement. Go to step
8
Go to step 9
Go to step 10
Repair the faulty part. Go to step 17
Engine