[cluster]

1992 Eagle 2000 GTX
2.0 DOHC
Auto
Car is from the U.S

Problem
The Idle Will Rev at 2500rpm when i start the car then drop to 1000
but then it starts to bounce from 500 to 1500 Seems to be ok these last couple of days it was -10 But when the weather starts to warm up the problem comes back

I was told it was the Idle Air control Motor So i picked one up
$280 later and the problem is still there


Please Help
No one in my area seems to be able to tell me whats wrong
And it's really do \ing a # on the trans