Mazda cx42.5 four-wheel drive 20 17 flicker.

You asked about Mazda cx42. 5 4WD 20 17 What is the cause of ignition jitter? The reasons for the answer are as follows:

1, the engine has not reached the best working state when the cold car is started, so the jitter is a little big, and it will be normal in a few minutes.

2. It is necessary to check whether the engine pedal is aging or worn, which can not effectively buffer the engine jitter, resulting in engine jitter at idle speed.

3. Long-term idling or low-speed driving will increase the generation of throttle carbon deposit, and serious throttle carbon deposit will also lead to engine idling jitter, so it is necessary to clean the throttle.

4. Carbon deposition in the spark plug will reduce the engine output torque and power, so it is necessary to replace the spark plug.

5. The oil quality is poor.