start.
During engine starting, if throttle is at wide open position, injected fuel will reduce a lot,
which providing a method of cleaning fuel from fuel spilling engine and need not remove
and wash spark plug.
It may take a long time to start engine during first starting (new car or after repairing fuel
system) because fuel pipe need to be charged with appropriate fuel pressure. After repairing
or refilling fuel again, turn ignition key to ON position and wait for 3 seconds, repeat
procedures for several times to recover fuel rail pressure.
3. Stall
Let engine idle for some time before stalling, which will let engine cool down gradually,
decrease heat impact strength, and do good for prolong engine operating components and 3
way catalyst converter life time.
4.Fuel circulation
Fuel pressure is up to 3.5 bar, therefore fuel inlet and return circuit must be firmly
connected and fastened with clamps.
During checking fuel circuit, starting engine after fuel rail and fuel pipe being removed is
absolutely forbidden. Otherwise fuel will flow out and may cause fire hazard. Fuel pressure
must be relieved before removing fuel system components.
Fuel pressure regulator blockage or fuel return pipe restriction will cause incorrect fuel
circuit pressure.
5.Fuel injector
If vehicle is not driven for a long time, the engine should be started for 3~5 minutes every
2~3 months to avoid fuel injector blocking. Fuel injectors shall be washed at least every one
year. Fuel injector O ring is life time component and can not be reused.
6. 3 way catalyst converter
When ignition switch is at ON position or engine is under normal operating condition,
checking firing by removing spark plug or ignition wire is absolutely prohibited. before
check firing, remove all fuel injector connectors, spark plugs and then connect spark plug to
corresponding cylinder high-tension wire ensuring spark plug thread part is reliably
grounded on cylinder body, start engine and check firing. Otherwise catalyst will be
damaged.
NOTE: If the engine has been running for a long time, the 3 way catalyst converter will be
very hot. Do remember to wear protecting glove when servicing to avoid scalding.
7. Throttle body
Adjustment to anti-stuck screw on throttle valve body by user is forbidden. This screw
position is precisely adjusted when assembled at factory. Improper adjustment may cause
high idle speed, engine stalling or idle stability, exhaust and fuel economic performance to
be affected.
8. Engine error indicator
Engine error indicator is located on front instruments panel. When serious error occurs, engine error indicator will
light. Such case must be repaired by professional person using appropriate tools immediately once occurs.
9. Miscellaneous
Electric fuel injection system frequent problems are caused by poor contact, therefore al
connecting points must be clean and have good contact. .ECU is of high quality component,
and itself seldom has problem. When checking, must use special tool and do not remove and
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