The failure of turbine joint of automobile air inlet and outlet system may cause the following effects:

1. Insufficient engine power: Failure of turbine joint may cause the turbocharger system to fail to work normally. Turbocharging system improves the power output of engine by compressing intake air. If the turbine joint fails, the supercharging effect may be weakened or disappeared, which will affect the power output of the engine and make the engine feel slow acceleration or lack of power.

2. The acceleration is not smooth: The failure of turbine joint may lead to the unsmooth acceleration. The turbocharging system provides additional airflow pressure during acceleration to increase the power output of the engine. If the turbine joint fails, it may lead to unstable or insufficient supercharging effect, making the acceleration process feel frustrated or incoherent.

3. Increased engine noise: Failure of turbine joint may lead to increased engine noise. Turbine blades and bearings in turbocharging system may be damaged or abnormally worn due to joint failure, resulting in increased noise. This may be manifested as abnormal noise such as hissing, sharp whistling or metal collision.

4. Increased emissions: Failure of turbine joints may lead to increased emissions. The normal operation of turbocharging system is helpful to improve combustion efficiency and reduce exhaust emissions. If the turbine joint fails, it may lead to a decrease in combustion efficiency and an increase in exhaust emissions, thus affecting the environmental performance of the vehicle.

5. Fault indicator lights up: Modern cars are equipped with fault indicator lights to indicate that the vehicle system has a fault. If the turbine joint fails, it may cause the fault indicator light of the turbocharger system to light up. This is a signal that the vehicle system detects a problem and issues a warning.

When the turbine joint of the air inlet and outlet system of an automobile is found to be faulty, it should be repaired or replaced as soon as possible. The following measures can be taken:

1. Check the fault code: use the vehicle diagnostic tool to read the fault code of the vehicle. Fault codes can provide clues about whether turbine joints have failed.

2. Observe the working condition of the engine: pay attention to the working condition of the engine, including power output, acceleration and noise. If abnormality is found, it may be one of the manifestations of turbine joint failure.

3. Check the connection and wiring: Check whether the connection and wiring of the turbine joint are normal. Make sure the connection is tight and the line is not damaged or disconnected.

4. Cleaning and lubrication: If there is carbon deposit or dirt on the surface of the turbine joint, you can use an appropriate cleaner to clean it. At the same time, ensure that turbine blades and bearings are properly lubricated.

5. Replace the turbine joint: If it is confirmed through inspection that the turbine joint is faulty, it needs to be replaced with a new joint. Make sure to select the correct connector for the vehicle model and turbine system.

It should be noted that it is recommended to seek the help of professional automobile maintenance technicians for complex turbine joint failures or for the need to replace turbine body or other components. They have professional knowledge and experience, and can diagnose and repair turbine joint faults more accurately.