2
1
Cylinder No.1 Fuel Injector
FE02-5052b
(a)
Disconnect the fuel injector wiring harness connector EN11.
(b)
Measure resistance between the two fuel injector terminals.
Standard Resistance: 20°C (68 ºF) 11.5-12.5 Ω
(c)
Connect the fuel injector wiring harness connector EN11.
No
Replace fuel injector assembly. Refer to
Yes
Step 3
Measure fuel injectors working power supply.
1
2
Cylinder No.1 Fuel Injector Harness Connector EN11
FE02-5053b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect cylinder No.1 fuel injector wiring harness
connector EN11.
(c)
Turn the ignition switch to "ON" position.
(d)
Measure voltage between cylinder No.1 fuel injector wiring
harness connector EN11 No.1 terminal and a reliable ground.
Standard Voltage :11-14 V
(e)
Connect cylinder No.1 fuel injector wiring harness connector
EN11.
Is voltage normal?
No
Yes
Step 4
Check the fuel injector control circuit.
1
2
Cylinder No.1 Fuel Injector Harness Connector EN11
FE02-5054b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect cylinder No.1 fuel injector wiring harness
connector EN11.
(c)
Connect test lamp made from light-emitting diodes to the fuel
injector wiring harness connector EN11 terminal No.1 and
No.2.
(d)
Start the engine.
(e)
Check whether the test lamp is flashing as per normal.
Is test lamp flashing as per normal?
No
Yes
2-128
Control System JL4G18-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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