96'Windstar

[VickiC]

I need some help here.
I posted a number of weeks ago regarding EGR problems. Initially I had the 401 code. Two mechanic shops( one ford dealer) can't pinpoint the problem.
Since then I,ve replace everything that I could find regarding EGR, and most sensors related to the EGR. I,ve cleaned the ports. The CEL is no longer on but I am still having the sluggishness and hesitation and almost stalling while driving.
I have noticed it when it is hot outside but its done it on other days as well but not often. Today I replaced Throttle position sensor, Idle Air Control Valve and it is still running the same. I,ve had it checked by Midas and the catalytic convertors are okay too. I,m totally at a loss here and trying to use this van to transport me to and from school in cincinnati. Its not an easy drive with it like this. Any other suggestions would greatly be appreciated