In the event of a malfunction in the engine management system, check that the air filter element is clean, the spark plugs are in good condition and adjusted gaps, the engine ventilation hoses are not clogged and the accelerator cable is correctly adjusted. Also check the compression pressure in the cylinders and valve clearances.
If the checks carried out did not determine the cause of the deterioration in engine performance, it is necessary to check the engine at a service station.
Visitor comments