Dtc: P0506, Idle Speed Too Low; Dtc: P0507, Idle Speed Too High - Lifan 620 Maintenance Manual

25. DTC: P0506, Idle Speed Too Low (see Table 1-38)
S/N
Connect the diagnostic instrument and adapter, and turn the
1
ignition switch to OFF.
Check the throttle adjusting bolt, accelerator cable, throttle
2
for normal operation.
3 Check the idle speed regulator for normal operation.
A. Check if the pressure of the fuel supply system is too low;
4 B. Check if the fuel injector is blocked;
C. Check if the exhaust system is blocked.
26. DTC: P0507, Idle Speed Too High (see Table 1-39)
S/N
Connect the diagnostic instrument and adapter, and turn the
1
ignition switch to OFF.
Check the throttle adjusting bolt, accelerator cable, throttle
2
for normal operation.
3 Check the idle speed regulator for normal operation.
A. Check the system for leakage;
4 B. Check the fuel injector for leakage;
C. Check if the pressure of the fuel supply system is too high.
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Table 1-38
Operation
Table 1-39
Operation
60
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Test Results Actions
Next step
Yes Next step
Necessary check, repair
No
and maintenance
Yes Next step
Necessary check, repair
No
and maintenance
Necessary check and
Yes
repair
No Diagnosis help
Test Results Actions
Next step
Yes Next step
Necessary check, repair
No
and maintenance
Yes Next step
Necessary check, repair
No
and maintenance
Necessary check and
Yes
repair
No Diagnosis help