What is the most common cause for “reduced engine power” being displayed on my STS in dash computer

What is your question?

It misfires and when you give it gas does very little with a very very strong smell of fuel and looks like gas dripping from tail pipes . Also throwing several codes P0017, P0018 and several others

What makes this problem better or worse?

After a low battery and clearing codes more codes came up as it misfires , low fuel pressure and crank & cam sensors codes among several others after running around the block in limp mode

How long has your 2008 Cadillac STS had this problem?

Car has been parked after shop told me to take it to the dealer. The dealer wanted to cheat get me 800-1,000 and said they had to take my motor apart just to tell me what’s wrong….. so I’ve towed it home.