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Just to let everyone know I found the problem. First the computer is located behind the front wheel well on the drivers side for USA. Second the wire harness that comes down and around the engine and goes to the computer is where the problem was. There id a long bolt that comes out from the transmission and is suppose to have .a plastic cap with a wire tie over it to hold the harness in place. It had come off and the harness had rubbed against it till it wore through. Guess what wire was shorting out every time I took off. Yellow with green stripe to EGR valve. Taped it up got the plastic cap back in place and no more P0403 code. Hopefully this will keep some one from going through the same thing.

Thanks Don I'll check it out this week end. That is where it was on my Grand Caravan also. I dumb place to put a peice of electronics.

Where is PCM located?

No just good for codes and reset.

Replaced my EGR valve because I was getting a p0403 code. Still getting code at different times. The one thing I notoced was it would come on when I had to get out in traffic quick, Any one have any trouble like tis or know a cure? This is a 2014 transit connect with a 2.5 engine and I did use an original Ford valve.