Chery A21 2005 Service Manual page 370

CHERY·A21 SERVICE MANUAL
DTC: P0506 Rotating speed of idle speed is lower than target idle speed
No.
Connect the diagnostic tester and commutator, put the
1
Check if the throttle valve adjusting screw, accelerator
2
cable and throttle valve working in good conditions.
3 Check if the idle speed regulator works in good conditions.
E, check if the pressure of the fuel supplying system is too
4
DTC: P0507 Rotating speed of idle speed is higher than target idle speed
No.
Connect the diagnostic tester and commutator, put the
1
Check if the throttle valve adjusting screw, accelerator
2
cable and throttle valve working in good conditions.
3 Check if the idle speed regulator works in good conditions.
4
C, check if the pressure of fuel supplying system is too
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Operating steps
ignition switch to "OFF".
low
F, check if the injector is jammed
G, check if the exhaust system is not straightway
Operating steps
ignition switch to "OFF"
A, check if the system is leaking;
B, check if the injector is leaking;
high
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ENGINE EFI SYSTEM
Result Follow up steps
Next step
Yes Next step
Carry out the
necessary
No
repair and
maintenance
Yes Next step
Carry out the
necessary
No
repair and
maintenance
Yes Next step
Replace speed
No
sensor
Result Follow up steps
Next step
Yes Next step
Carry out the
necessary repair
No
and
maintenance
Yes Next step
Carry out the
necessary repair
No
and
maintenance
Carry out the
necessary repair
Yes
and
maintenance
No Diagnosis help