Page 2651 - Foton Workshop Manual - Sauvana

DIAGNOSIS-ENGINE CONTROL SYSTEM 62-599

Is the inspection result normal?
YES> To step 12。
No > Clean the injector. Check the working status of injector again. If it still injects wrongly,
change it.Fuel injector。

12. Check the cylinder pressure 62

(a). Perform the test of cylinder compression pressure.

Is the inspection result normal?
YES> To step 14。
No > To step 13。

13. Check the engine valve timing

(a). Check whether the engine timing gear mark is aligned, damaged or not, the belt is
loose, detaching or not.

Is the inspection result normal?
YES> To step 14。
No > Perform the alignment operation of the timing belt or change the timing belt.

14. Check the motor machinery

(a). Use an endoscope to observe the in-cylinder condition.
(b). Observe and reflect the voltage changes.
(c). Dismantle and repair the motor internal fault:clean the carbon or disassemble
and check the motor cylinder cover. Check the valve, intake manifold has carbon
deposition. Such as: the gap between the piston ring and the cylinder is too tightly
loosed, cylinder pad leaks, valve tube loose, valve does not close well, and valve
has carbon deposition.

Is the inspection result normal?

YES> To step 15。
No > Repair the internal machinery fault of the motor.

15. Replace ECU.

(a). Replace ECU.。
(b). Check the data flow of the engine, and make sure the engine phenomenon does not
exist, the system is normal.

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