91 ford esort pony. 1.9 fuel inj. the car stalled and would not start again. it had bad valves so i replaced them. when i got the engine put back together it will only run when i pump the gas pedal. i put a new throttle positioner on, didn't help. ???

My '94 Escort started dying when I came to a stop. Turned out it was the vacuum line feeding the PCV valve, up on the top of the engine. I popped the hood and could hear a faint hissing.

The aboev person was most likely referring to the vacuum elbow that goes bad on all of these cars.

Complete writeup with pics is here:
http://www.feoa.net/modules.php?name=Forums&file=viewtopic&t=26196

http://forum.videohelp.com/images/guides/p1490611/engine_02_small.jpg

You can see this one is bad, with there being a hole in the back of the elbow:


http://forum.videohelp.com/images/guides/p1490611/engine_03_small.jpg

Edit.