My focus is throwing codes
p0606
p2831
p0882
u0073
I know what the codes mean but does anyone have any idea how to find the exact problem. Or has anyone had this problem. My car ran “fine” sort of but then one day it wouldn’t start. I have changed the starter. Help me please.

 

When we get a series of codes some related and some not,
there is usually a ground connection problem.

What would be a good place to begin would include ,
checking ALL fuses
Checking ground connections, starting right at the battery and all wires from the battery negative cable on the engine that go to sheet metal and inside the vehicle.
Since the network on the vehicle works with millivolts , the slightest resistance from a poor connection can produce unbelievable unusual results.