90 caravan won`t keep running!

van starts and then dies. if I pump the gas pedal it runs at about 3000 RPM and dies as soon as I quit pumping the pedal. the fuel pressure is 14.5 at inlet of throttle body. new fuel filter installed. new EGR valve and AIS motor and timing belt installed about 9 months ago. I need some help!

disconnect the map sensor. If the engine will now idle and run almost normal replace it. They had a problem with the sensor being out of range for barometric pressure. This caused hard starting and poor idle, sometimes also a no start.

right on with MAP sensor it starts and runs! It still has a miss and seems to be running rich,(black smoke at exhaust) so will have to do some more checking. Any idea`s. Thanks for the tips!