Dongfeng Fengxing Power System Fault

1, inaccurate ignition timing and premature ignition, resulting in premature combustion and detonation of combustible mixture; Due to the ignition system failure, the spark plug is broken or the spark plug is not firm;

2. Cylinder compression pressure: the piston, piston ring and cylinder are seriously worn, which leads to the increase of the fit clearance between the piston, piston ring and cylinder and the deterioration of sealing performance, which leads to air leakage in the cylinder head and reduces the cylinder compression pressure; Due to poor sealing, the crankcase leaks air and the suction is reduced;

3. Check whether the air filter is blocked and remove it if necessary;

4. Check the throttle opening. When the accelerator pedal is pressed to the bottom, the accelerator should be fully opened; Otherwise, adjust the cable or study the pedal position sensor and throttle position sensor.