recently replaced my alt, plugs, engine bay fuses, and removed my air pump. i finally got all this done, and my car just won't hold an idle. i keep my foot on the gas to keep it running but after that it just dies. i drove around for a lil while and still nothing, i warmed up the engine cuz it sat for a couple weeks and redlined it for few secs and still nothing. maybe fuel?

 

vacuum leak

 

BAC might need to be cleaned, it is often the culprit.

 

I had the same problem, clean your TPS. this sounds dumb but honestly I changed my alternator and went to start it and it did the same thing as yours.

 

Doesn't removing the Air Pump on the S5, prevent the ports from opening?