my 2.8 won't idle and it is showing no codes? it starts fine and as long as you keep your foot in it it stays running. let off the accel. and she dies?

Check your distributor. I was replacing the pick-up coil when I noticed the reluctor was craked. When I took it off it broke completly in half. I put it back on, because I can't get a new one without buying a new distributor, and now the car is dieing just like yours is. It could either be the reluctor or the Pick-up coil. Pray it is the pickup coil because you can't get a new reluctor without buying a whole new distributor.

I don't think it would be the dist. pick up coil, if it is bad it wont run at all. I would check the throtle position sensor. I know it is supposed to send a code, but I have found sometimes if the sensor is not completly shot it won't throw a code.
Good luck
Don

I had a problem like this. I found that it was a bad EGR. No codes where set and ran fine once I was on the gas, but would stall at stop lights. This was on an 86 2.8 Automatic.

Eric

Bad EGR, Clogged IAC port, Clogged vaccum port, Bad TPS, Dirty injectors, just to name a few things to check.