I have a problem, when I'm driving my car and stop for a red light or just stop, the RPM is at 1000 but slowly starts to go down to 500 and my car starts shaking, I have to accelerate in order to take it back it 1000 and let the gas pedal go and it will stay at 1000, or when I have the air on, it doesn;t do it.

any one can help please???

 

mine does the same, i have the car for almost 3 years, and have no idea what to do. it's a Neon common problem, and nobody knows exactly why

 

Most neon's do this, if not all of them. that's just how they are.

 

i had this problem tough, and i change the iac sensor, i toke the car for get a reflash, to see if we can get up the idle, and thats it, its common on neon iunno why but with a reflash u can fix the problem!

 

did changed the iac also, w no result, but i didn't reflased it. that's something i do at a dealership, right? how much they charged for that????

 

yeah and was a lot, i dont live in usa but in the change was like 250us$

 

k, thanks, i'll give it a try. i'll let u know when i do it if it works or not