The sign 307 has insufficient power and slow growth.

Peugeot 307 has insufficient power and slow speed. It is suggested to check from the following aspects: First, check whether the carbon deposit on the vehicle engine is serious. Excessive carbon deposition will result in insufficient engine power. In this case, it is necessary to clean the throttle valve, carbon deposit at the air inlet and the three-way catalyst. Then use the computer to reconfigure the throttle. Then check the ignition system, if the ignition coil is damaged or the spark plug gap is too large. It will cause the failure performance of insufficient power and slow speed increase. If the spark plug gap is too large, a new spark plug needs to be replaced. Finally, it is necessary to check whether the speed increase is slow due to insufficient oil supply pressure of the gasoline pump. In this case, it is recommended to clean the oil circuit first and replace the gasoline filter. Then check whether the oil supply pressure of the gasoline pump is within the normal range.