Low idle

my car idles under 1000 rpm and when im stopped the car starts to die you can hear the engine wanting to turn off any suggestions that will help much appreciated thanks

also after i accelerate my rpm will shoot right up then come back down making the car jerk then after that its fine.

This is a common problem, a member here wrote a guide. Check it out:
http://forums.g2ic.com/showthread.php?42969-Teg-Tip-Bad-Idle-Troubleshooting