I have a 96 t-bird 4.6 with a CE light. I cleared the codes and changed plugs(it had the wrong ones) and wires, cleaned the MAF, pulled the silencer. When I started the car, it ran alot better and no CE light. On the way to see my girl the light came back on ! I scanned it this time and got this P1443 code, what is it and how do I fix it!!