How to judge whether the accelerator of Chery Fengyun is broken? The cold car will repeatedly turn off the fire two or three times after hitting it, and then the speed will be unstable or the throttle

How to judge whether the accelerator of Chery Fengyun is broken? The cold car will repeatedly turn off the fire two or three times after hitting it, and then the speed will be unstable or the throttle will be increased after hitting it. Hello, my friend, there are many reasons for the unstable waiting speed, which are roughly as follows: 1. Whether the spark plug is damaged needs to be checked; 2. The oil circuit/oil product problem is not caused by 93# and 97#. I suggest you go to a regular gas station to refuel after you finish this tank of oil and try the effect again. 3. Whether the starting motor is abnormal and whether the engine speed is abnormal at idle speed; 4. Whether the air intake system is abnormal and the air path is smooth; 5. Engine carbon deposit, lower throttle and nozzle cleaning; Friends check the above items; involve