2.Cylinder No.1,2,3,4 Fuel Injectors
FE02-5131b
Fuel injector is installed on the cylinder cover, in front of intake
valve. Based on ECM's instructions, it injects fuel during
specific period of time, to provide engine the fuel atomized fuel.
It also plays a role of storing high-pressure fuel to eliminate fuel
pump resonance caused by pumping fuel. The fuel pressure
remains stable. Fuel injector is an electromagnetic controlled
nozzle. The return spring inside the shell compresses needle
valve and seal the exit. During injection, the electronic
controller gives control signal, electromagnetic coil obtains
power, producing the magnetic field to overcome the return
spring pressure, needle gravity, friction, etc. lift the needle
valve. Under the pressure fuel sprays out. As the needle valve
only has rising and falling only two states, needle lift travel can
not be adjusted. As long as the pressure difference is constant,
fuel injection quantity only depends on the needle valve
opening time that is opening electrical pulse width.
Note
When the fuel injector is blocked or not closed tight, the
engine malfunction lamp may be lit. The detected DTC
code is: oxygen sensor distortion, signal erratic or Air-
Fuel ratio is not normal etc. At this point, carefully
diagnose the component fault. Because when the fuel
injector is blocked, the fuel injection amount is not
controlled by ECM fuel injection pulse width. The oxygen
sensor mixture concentration signal feedback to ECM
will very different from the theoretical value. ECM will
determine the oxygen sensor is not working properly.
The system can not determine whether it is the oxygen
sensor itself faulty or other associated components
faulty. Pay attention to determine the failure component
when diagnose such a fault.
ECM controls the fuel injectors through ECM harness
connector EN01 terminals No.50,63,49,64. If a fuel injector or
circuit is fault, DTC code P0201, P0202, P0203, P0204, P0261,
P0262, P0264, P0265, P0267, P0268, P0270, P0271 will be
recorded.
3. Ignition Coil
FE02-5132b
Cylinder No.1,4 ignition coil is located at top of the cylinder No.
4. Cylinder No.2,3 ignition coil is located at top of the cylinder
No.2. Ignition coil primary winding low voltage will be
transformed into the secondary winding high voltage. The
spark plug discharges spark, igniting the air and fuel mixture
inside the cylinder. Ignition coil consists of a primary winding,
a secondary winding, iron core, shell and other components.
When the primary winding is connected to ground, it will be
charged. Once ECM cuts off the primary winding circuit, then
charging will be terminated, while a high voltage induced in the
secondary winding, so that spark plug discharges. Different
from the ignition coil with a distributor, the ignition coil
secondary winding is connected to a spark plug at each end,
so the two spark plug discharge at the same time. ECM controls
the ignition coil through ECM harness connector EN01
terminals No.3,7. When an ignition related fault occurs, DTC
code P0300, P0301, P0302, P0303, P0304 will be recorded.
Engine
Control System JL4G18-D
2-19
EC718/EC718RV EC715/EC715RV 10/2009
Содержание EC715 2009
Страница 4: ......
Страница 312: ...2 3 4 5 Fuel Injectors FE02 2022b 2 230 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 516: ...2 7 4 3 Front Muffler Assembly FE02 2032b 2 434 Exhaust System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 517: ...2 7 4 4 Rear Muffler Assembly FE02 2033b Engine Exhaust System JL4G18 D 2 435 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 519: ...2 7 4 6 Front Muffler Heat Shield FE02 2034b Engine Exhaust System JL4G18 D 2 437 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1164: ......
Страница 1257: ...Next Step 9 System normal Brake System ABS TCS EBD ESP 6 93 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1278: ...6 7 8 Special Tools and Equipment 6 7 8 1 Trigger Tool FE06 1007b 6 114 TPMS Brake System EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1412: ...9 2 6 4 Warning lamp Always On Schematic 9 14 Airbag System Safety Protection Device EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1703: ...Rear Wiper Motor Hatchback FE11 2009c Body Electric Wipers Washers System 11 219 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1704: ...Washer Fluid Tank Sedan FE11 2010b 11 220 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1705: ...Washer Fluid Tank Hatchback FE11 2010c Body Electric Wipers Washers System 11 221 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1706: ...Rear Washer Nozzle Hatchback FE11 2011c 11 222 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1734: ...Next Step 13 System normal 11 250 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1860: ...BCM FE11 0803b 11 376 Remote Anti theft System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1951: ...Reverse Radar Control Module FE11 1207b Body Electric Reverse Radar 11 467 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1954: ...16 R Control Module Power Supply Gear In Reverse 12 V 11 470 Reverse Radar Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 2008: ......
Страница 2104: ...FE12 0085c 2 Install the hatchback seal 12 96 Interior Trim Body Sheet Metal and Painting EC718 EC718RV EC715 EC715RV 10 2009 ...