Hey guy's I need some help. My car is fine, it's the wife's car. It's a 95 t-bird with a 4.6 v8 Let me give some info on what has been done. I put a 58k motor in with all new gaskets, new cat's all new plugs and wires. I got the p0402 code I had the egr changed by a local shop, I changed the dpfe valve before it went to the shop. I got it back 8 days later, she drove it for one day and the code came back as p0402, I took it back, to make a long story short they can't fix it. Now it's at ford. Any help would be great.