Had a similar problem with a 93 dodge ram van B350. believe it or not i found out it was the computer. it cost me almost 300.00 to replace. the computer didnt look bad but it was. have it checked out before your car stops running all together like mine did. the computer is called an ECU
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The vacuum line on top of the EGR is required for propper vehicle operation. The vacuum line is what opens the valve when the solenoid is comanded on. As for the MAP sensor check the injector/MAP sensor harness right by the driver side corner of the rear head. The harness tends to melt and cause rough running conditions and misfires. So would the EGR which is a common issue and yes the the whole assembly should be replaced.
A bad vacuum line will cause this code also. Also it will cause a rough idle and stalling. Open the hood and listen for a hissing sound. track it and you,ll find the leak. Also I would just check all the lines to make sure another in not ready to go.
This sounds like a classic case of either a dirty/faulty IAC (Idle Air Control) motor or a sticking EGR valve. If you can prevent it from stalling by keeping your fot on the gas slightly and it always restarts right away and runs good when restarted, I'd suspect the IAC first. If it "chugs"when stopping and will run rough even with a little (not a lot) of gas pedal and/or it runs rough when restarted, I'd suspect the EGR.
Check the sensors on the throttle body. There is a sensor that controls air to fuel ratio. If that sensor is bad then the car will run and then stall out while in drive. I had the same problem when it was cold outside last winter. If you dont want to dish out the money without knowing if it is that part at fault or not then start the van pop the hood and located the throttle body. Place your hand on the sensors and give them a little shake and then make sure they are plugged in all the way. You could also turn the van off and unhook the sensor clean the connectors and plug it back in. That should do the trick and if it doesnt stall anymore then I would replace those sensors if I was you. One more thing. If your giving the sensors a tug while the car is running and you hear it going to stall you could located the gas pedal cable and give it a rev or two by hand so it doesnt stall out and turn off.
By the way. You van isnt over heating at all is it?
you first step is to confirm the van has fuel pressure when the problem occurs sometimes fuel pumps only fail at certain conditions there maybe debris in the tank being stirred up when she fills please rate -jeff