[Androzer]

Hello.
I tested my EGR valve found out it dose not hold the vacuum. any way is it important for performance and engine cooling or it is mainly for environment and gases recalculation?

 

[Pmotion]

This article will explain the function of the EGR and different types. If your valve is a back pressure type it wont hold vacuum.

https://asetesttips.com/exhaust-gas-recirculation/