My car acts funny has hell sometimes. At times it will not idle down idles around 1000-1500. other times it sits right at 600rpm.
usually when it idles high it does not want to shift when it should, acts just like my TPS is broken. I have already put 2 Tps sensors on here..

Usually when it will not shift untill about 3500 rpms no matter if I floor it or what.It will not down shift, The check engine light also comes on alot when this happends, sometimes not.

whats the deal??

 

Dude you couldn't have picked a worse section to ask this question.

There is an LT1 section on here, and www.camaroz28.com has a good LT1 tech section also.

You didn't even tell them what kind of car it is dumbass

 

Idle Air Control Valve probably needs replacing. Did the same thing in my car and I fixed it in 5 minutes today for $33.00.