What happened to Citroen's triumphant engine barrel?

There are several reasons for engine jitter.

First, dirty throttle leads to unstable idle speed or low idle speed. It is recommended to clean the throttle and then re-match the throttle.

Second, the spark plug ignition head has a large gap or too much carbon deposit, which leads to bad electric jump. It is recommended to replace it.

Third, the nozzle is slightly blocked, and the fuel injection quantity of the four cylinders is uneven. It is recommended to clean the nozzle.

Fourthly, the ignition coil (high voltage package) does not work normally when converting high voltage electricity, so it is recommended to replace it.

Fifth, the cylinder pressure is insufficient, the piston ring is worn, the valve leaks, and the spark plug is not well sealed. Normal cylinder pressure is above 8 kg, and several cylinders must reach the same cylinder pressure value.

Sixth, the foot glue of the engine fixer is worn due to aging, which will also cause starting jitter. It is recommended to replace.

I hope my answer can help you. I wish you a happy life. If in doubt, please consult a car master. 4S shop professional technician, 10 minutes to solve.