Chery automobile Service Manual page 461

(4) Wait until the cooling fan stops.
3. With the help of WDS or corresponding instrument, check whether the ignition timing falls
within the scope of the specification.
Ignition timing:
Approx.: 10±5 degrees advancing TDC
4. When the engine speed is gradually increasing, confirm that the ignition timing is also
correspondingly advanced forward.
Check idling engine speed
Note:
·The ignition timing must not be adjusted.
·Checking the ignition timing requires the use of WDS or corresponding instrument.
1. Switch off all the electrical devices in the vehicle.
2. The procedures of preheating the engine are as follows:
1 Start the engine.
2 Keep the rotation speed of the engine at about 3,000 R.P.M. until the cooling fan starts to
rotate.
3 Release the fuel accelerating pedal.
3. With the help of WDS or corresponding instrument, check whether the ignition timing falls
within the scope of the specification.
Engine idle speed (480ED-1000010EA combined with electronics)
Electrical devices in the vehicle start to work.
A/C is switched on, and cooling switch is switched off.
A/C is switched on, and cooling switch is switched on.
Conditions
Non- load
T-21
Engine revolutions RPM
800-900
800-900
800-900
950-1050