Chery A11 2003 Repair Manual page 630

4.6 engines often stalls
Check step motor fault
1 check mount screw
2 short time vibration
should be felt when
ignition switch turned
on
Check throttle position
sensor
Check throttle valve
gap; warm engine to
80℃, let engine idle,
cut off A/C. Use scan
tester to detect motor
steps. The total steps is
20-30.
Watch each cylinder
firing check and ensure
spark plug and plug gap
is 8mm.
NOTE: Measure
compression pressure
and air valve gap
Check air intake
manifold pressure
sensor
Check circuit
connection
★ If engine stalls, check following components:
Air system leakage check
1 repair or replace step motor
2 check step motor wire
3 replace or turn idle motor
mount screw
Throttle position sensor and its
connection, repair or replace as
necessary.
1 If steps is not
specification, adjust the initial
angle of throttle valve, ensuring a
correct total steps.
2 If there exists carbon or tar
deposits, please remove it.
Note: If reliable tool for testing
total idle steps is not available,
DO NOT adjust initial throttle
angle.
1 replace spark plug
2 cylinder compression pressure
3 valve gap
Check air intake pressure sensor
and wire, repair or replace as
necessary .
1 ECU voltage supply
fusible link
fuse
2 circuit wire test: using voltmeter
or ohmmeter measure voltage or
resistance
within