Chery A11 2003 Repair Manual page 623

2.3.3.2 air intake manifold lower body
Water temperature sensor
Beside is elbow of water
2.4 fuel vapor control system
In order that air could be exchanged for fuel tank, and to prevent fuel vapor from exhausting
to atmosphere, fuel vapor is absorbed by active carbon and stored in it. Upon engine
operating condition, stored fuel vapor will be timely and adequately sent to air intake hose
and burned with mixture in combustion chamber.
SQR480EC multi-port fuel injection system using and servicing
3.1 fuel and purge system using and servicing
3.1.1 Fuel grade used in Chery engine must be higher than 93#RON, and leaded gasoline or
fuel grade lower than 93#RON CAN NOT be used. Leaded oil could do harm to the
3-way catalyst, resulting in the loss of oxidization and reduction function to harmful
materials in exhaust. Lower grade gas will cause fuel injector being blocked, pin valve and
regulator etc. being damaged, shortening components lifetime. Using leaded gasoline will
cause a damaged 3-way catalyst converter, after which 3-way catalyst converter function
will not recover even the right gas is used. If leaded fuel is added, the vehicle should be
driven to specified repairing workshop and repaired as soon as possible.
★ 3-way catalyst converter lose its function under following conditions, which should be
avoided.
Burned under high temperature. The ideal temperature for a high purge ratio and long life
time is s 400-800℃. A higher temperature will cause overheat catalyst, fast ageing, losing
catalyst function;
Catalyst hole blocked;
(3) Under an over 800℃ temperature and last for 30 seconds, remaining gas in catalyst
will cause 3-way catalyst converter being damaged. Therefore when engine operating,
removing ignition coil wire for an operational engine is absolutely forbidden.
3.1.3 Poor engine operation may cause 3 way catalyst converter being damaged. Therefore,
scheduled technique service must be done as per Servicing Manual.
3.1.4 Before engine stalls, let engine idle for some time and cool down gradually, lower heat
impact strength which will do good to a prolonged engine components and 3 way catalyst
converter life time.
3.1.5 After a long-time driving, the vehicle CAN NOT be immediately parked in a place
where the 3-way catalyst may reaches flammable materials to avoid accidents caused by
high temperature 3 way catalyst converter.
3.1.6 DO NOT depress throttle pedal when starting. ECU determines engine operating
conditions upon throttle position. Once throttle pedal is depressed, throttle is opened and
ECU cannot determine if engine is under operating condition and can not supply fuel
correctoly.