just installed a cold air intake that goes into my fender while i did that i replaced a broken inner fender piece that got busted when i hit a damn deer after everything was back together i started the car up and put it in reverse then it died now all it wants to do is rev back and forth between 500 and a thousand rpms and when it shifts it shifts really hard i tryed replacing the throttle position sensor but that didnt help and help would be appreciated

 

I had this issue on my Alero when I first installed my CAI and it turned out to be a screw on a coupling near the throttle bottle that held it open so all it did is want to rev. Check that first if not maybe remove the throttle sensor and see if it idles out or the intake sensor.

 

mine doesnt rev out it just goes below 500 rpms then tries to catch its self and revs to 1000rpms. just constantly does this if the car is idleing. i have unpluged the throttle position sensor and the mass flow sensor but no change.

 

changed the map sensor still does it is their anyway to check the trans fluid without going to a shop? it shifts really hard just wondering if that could be the problem

 

I would reinstall the original intake while troubleshooting this problem. My guess is something was unplugged during the install, and not plugged back in later.
The trans shifting is probably related, and not a trans problem. Fix the idle/surge, and the trans will probably be cured also. It could be a limp-home shift mode, caused by the missing input from whatever sensor is unplugged.
What engine do you have?

 

it is the 3.4L, i have checked all the wires and vacume lins and nothing has helped. tried stock intake and still nothing.changed all sensors and maf sensor also..

 

Did you take it into the shop? What was the fix? I'm curious.

 

one of the pins for the map sensor inside the plug in had broke for some reason about 3 bucks to fix after weeks or changin sensors and crap runs and shifts like a champ