A turbocharger is a technology in modern car engines that increases the power and performance of the engine by increasing the intake pressure and intake air volume. But if the turbocharger fails or becomes damaged, it can have a negative effect on the engine.

First of all, after the turbocharger fails or is damaged, the intake air volume will be reduced or it will not work properly, causing the engine to lose power and acceleration. This is because the role of the turbocharger is to compress the air and send it into the engine to increase the efficiency of fuel combustion. If the turbocharger fails, it will not be able to provide sufficient intake pressure and flow, thereby affecting the output power of the engine. 

Secondly, failure or damage of the turbocharger will also affect the durability and stability of the engine. A turbocharger is composed of high-temperature, high-pressure gas and a high-speed rotating impeller. If the turbocharger fails, it may cause problems such as impeller imbalance, impeller damage, and intake passage blockage, thereby affecting the normal operation of the engine. At the same time, the failure of the turbocharger will also cause the temperature of the engine to rise, which will affect the life and reliability of the engine.

Therefore, the failure or damage of the turbocharger has a very serious impact on the engine. If there is a problem with the turbocharger, it needs to be repaired or replaced in time to ensure the normal operation and long-term use of the engine.