2. Run the engine for no longer than 5 s.
Step 9
Use a properly working spark plug and check whether there is misfire cylinder arcing.
(a)
Replace the installed spark plug with a spark plug that works
properly.
(b)
Test spark plug.
(c)
Remove misfire cylinder ignition wires.
(d)
Disconnect all fuel injector cylinder connectors.
(e)
Install the ignition wires to the spark plug.
(f)
Run the engine (the engine running time no longer than 5 s)
and check the arcing.
(g)
Reconnect all cylinder fuel injector connectors.
(h)
Install the ignition wires.
Is spark plug arcing normal?
No
Check the ignition coil and ignition wire. Go to
step 17
Yes
Replace the spark plug. Refer to
Step 10
Check ECM control connector terminal voltage of the misfire cylinder fuel injector.
FE02-5273b
1
17
33
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ECM Harness Connector EO01
(a)
Turn the ignition switch to the "ON" position.
(b)
Remove ECM harness connector EO01.
(c)
Measure ECM harness connector EN01 terminal voltage
according to the following table.
Connector Terminal
Standard Value
EO01 (65)
9-14 V
EO01 (63)
EO01 (64)
EO01 (66)
Is voltage the specified value?
No
Check the fuel injector circuit. Refer to
Yes
Step 11
Check the misfire cylinder valve gap.
(a)
Refer to the "Engine Mechanical System" in
the
, Is valve clearance
normal?
No
Adjust the valve clearance. Go to step 17
Engine
Control System JL4G15-D
2-719
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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