So i got my s5 n/a to finaly start without pushing. Now the problem is it won't run. I get rpm flux between 200-1800RPM, Heavy fuel smell, popping in the exhaust if I give it gas but it still won't rev. I blew a coolant line the other day and coolant got all over the place. Car idles hard, won't go and backfires. I check the lead and trailing coils and they are firing. Could there just be to much gas in the housing? possibly a injector problem? I've wracked my brain and tried everything i could think of, i'm all out of idea's.

 

Just pulled the ECU code and gota #33. Port Air Selnoid Valve. What does this meen in lamens terms. I checked them and they are all connected. Anyone please, i really need some help on this one.