My car started the problems by stopping on the motion

According to trend of the common problems mention in the forum I think the oxygen sensor is bad . Please according to your experiences on the car can it be the sensor

Sorry, without you telling me what the vehicle is or is not doing, I cannot offer any advice. So far the only information you have provided is that the vehicle is not moving. That could be anything. I need a good description of what is happening with your vehicle. Let me know, I'd like to help you.

The car started by stopping on the motion so my mechanic taught it was fuel pump so we change it,after the changes the nozzle started dropping petrol on the manifold I mean the silencer so change the the nozzle then since

I'm sorry, I cannot understand what you want to say. What is your first language? Arabic or Spanish? https://translate.google.com/

Vacuum leaks at the brake booster.