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CHERY·A21 SERVICE MANUAL ENGINE EFI SYSTEM 47 DTC: P0506 Rotating speed of idle speed is lower than target idle speed No. Operating steps Result Follow up steps 1 Connect the diagnostic tester and commutator, put the ignition switch to “OFF”.
Next step Yes Next step 2 Check if the throttle valve adjusting screw, accelerator cable and throttle valve working in good conditions. No Carry out the necessary repair and maintenance Yes Next step 3 Check if the idle speed regulator works in good conditions. No Carry out the necessary repair and maintenance Yes Next step 4 E, check if the pressure of the fuel supplying system is too low F, check if the injector is jammed G, check if the exhaust system is not straightway No Replace speed sensor DTC: P0507 Rotating speed of idle speed is higher than target idle speed No. Operating steps Result Follow up steps 1 Connect the diagnostic tester and commutator, put the ignition switch to “OFF”
Next step Yes Next step 2 Check if the throttle valve adjusting screw, accelerator cable and throttle valve working in good conditions. No Carry out the necessary repair and maintenance Yes Next step 3 Check if the idle speed regulator works in good conditions. No Carry out the necessary repair and maintenance Yes Carry out the necessary repair and maintenance 4 A, check if the system is leaking; B, check if the injector is leaking; C, check if the pressure of fuel supplying system is too high No Diagnosis help |