After replacing the new wastegate valve, the pressure value is still 150.

After replacing the new wastegate valve, the pressure value is still 150, which is caused by poor sealing of the throttle pad and high idle speed. Sometimes it's normal to turn off the engine when starting, and it's useless for the idle motor to change the throttle.

Damage reason of waste gas valve: 1, quality problem of waste gas valve itself. 2. Improper use and maintenance of waste gas valve. 3. The waste gas valve was suddenly damaged after the automobile accidentally added low-purity gasoline and fuel treasure. 4, waste gas valve aging.