94 explorer starting and stalling problem

I have a 94 Ex with a intermittent starting and stalling problem. I replaced the IAC valve, that seemed to fix the starting problem but it will still stall after 2 minutes or 1 hour of driving. Just never know when. I have aso checked the MAFS to make sure its getting power to it and it is.After it sits a few minutes it starts right back up?

Could this be a fuel problem like the filter or low presure? I have read that this to can cause the same problem. The MAFS cost about 80.00 so I dont want to just start buying parts. Any HELP........or even a " GUT FEELING " would help.........THANKS

put a fuel pressure gauge on it and drive it. when the stall happens look to see what the fuel pressure gauge is indicating.

If you check for continuity across the B+ and the B- of the MAF it'll tell you if the wire is opened up. You can also stick some pins through the MAF wires onto the B+ and B-. Start it up and check the voltage. .5 to .7 at idle is normal. Have someone get on the gas a little and you should see the voltage climb little by little. 1.5 - 3. volts

could be your TPS (throttle position sensor)

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