What are the results of a bad EGR
 

How would my car react if i had a bad EGR..

Can you give us more details, or perhaps continue one of your other 3 topics on this subject instead of starting another new one?

ive had this problem for the last 6 months and have ignored it its driving me nuts now the check engine light comes on some times but not like it has usually the same thing pops up on my Xray scanner EGR Piintle postion circut and Trans range sensor circut malfunction..the main problems that is occuring is that in the morning or any time i start the car when i accelerate theres like a stumble i watch the rpms and there not moving but if i tap the gas and let off of it the car goes below the normal idle for the rpms and it stumbles again

If you have a code for EGR Pintle position error and the car is stumbling, change the EGR valve.

You can get a cheap EGR valve here:
http://www.moradpartscompany.com/

For shits and gigles, did you attempt to clean out the EGR valve? Before you do get a new one try this: Get carb cleaner and a stiff brush and clean that sucker out. Then once you do, oil the pintle inside and excercize it up and down so that the lubricant goes inside. After doing this, it should be easier to push up on the pintle than before. IF it doesn't keep cleaning it and oiling it again then try again. Once you stick it back in the car, it will STILL give you a light, but it wont dissapear until after a couple of drives.