I just installed injectors on my S5.

When I start the engine it immediately goes up to 3000 RPMs for a while. After that, the engine just dies. It goes from 3000 to 0 RPMs.

Please anyone tell me, what could be wrong?

 

You have a vacuum leak somewhere. Everything is not plugged in correctly.

 

can you still step on the gas a 1000 and keep the car idling.

 

AFM plugged in?

 

I rechecked everything and turned out the throttle body gasket was in the wrong way . I didnt notice there were vacuum passages through the gasket until I realized yesterday. Ah well, I have only had this car for 3 months so I have no idea what Im doing.

thanks for all the help