Spent over 800 dollars in shop repairs they say computer not working

I changed the holding tank for the water. It is using water but it doesn't leak anywhere

i ran out of gas in my 2002 Oldsmobile intrigue put plenty of gas in it now it won't start... It turns over and sounds LIKE it wants to start but doesn't what could this be????

I ran out of gas put plenty of gas in it but now it won't start why?

Had a broken wire in ecm was fixed n ran great for few days then sdill ran good but had service engine light n track light on all the time n security,abs n airbag would come on n off.. Now will not start at all… lights n everything still comes on but no crank at all no clicking nothing

complete brake job- probably rotors, pads calipers.

wiper arms
partial exhaust repair from flex pipe back

I have 3 codes

Turn signals work when they feel like it. Maybe 2/3 of the time or less. No pattern to when they decide to not work.