A few weeks ago I think that I found the problem. When I when to test the ECT the plastic connector was covered in oil and crumbled in my hands. It took me this long to find a junk yard that would let me cut just that one sensor wire (cost $2), all the other yards wanted me to buy the whole harness. In the next few days when I can get to it I'll change the wire and reconnect the ECT and see what happens. I hope this will fix the fault codes.