The Guangben Accord bought on 20110 is slow in acceleration and still shaking. The tail gas is very heavy, please ask the expert for advice. `

Obviously, it is the problem of insufficient combustion. There are several reasons for the whole problem. Let's list them one by one and have a good check.

1, serious carbon deposition, frequent low-speed driving leads to more carbon deposition, poor air intake, too thin oil-gas mixture ratio, stuffy traffic and slow response. Clean the air inlet and throttle; Running at high speed (4000 rpm) for 30 minutes should change a little.

2. The sensor is actually a question of mixing ratio. Check whether the oxygen sensor is normal or not, which will lead to the lean oil-gas mixture ratio.

The jitter you said is not clearly described. Is the car shaking or burning when idling or accelerating? If the jitter is serious, it may be a spark plug problem, resulting in cylinder loss.

4. Heavy tail gas is also caused by poor combustion. In addition to serious carbon deposition, check three-way catalysis. If it is too dirty, it needs cleaning.

5. Besides, has your car ever stalled at low speed or idling? If yes, check whether there is air leakage; The oil supply is insufficient.

Go to 4S to explain the situation and let professional and technical personnel check it. Look at the above symptoms. These are not big problems. Just solve it as soon as possible!