Just the past week or so i noticed that my rpms were droping real low when i would be sitting still , it will drop below 1000 and almost die but then go back to normal..... now i notice that if i take it out of gear really fast it the does the same thing . I took it to the dealer ship down here and its not throwing any cels so they cant find anything wrong with it so i test drove with one of the workers to show them but they still dont know what it could be. I am from AZ but I just got stationed down here in Louisiana so i dont know of any good places to take it to.
any help would be apreciated

 

What mods? Did you install or do something to the car before the problem started?

I know there is an idle control system in the throttle body, but it throws the P0505 CEL if it malfunctions

 

All i have is TBE Intake BOV and this was installed about a year ago

 

Could be your BOV, is it VTA or recirculated?

 

its VTA

 

there is the problem... you need to recirculate the air back into the intake

 

But why would this just start happening now?

 

Likely a mixture issue that wasn't as apparent in AZ due to low humidity possibly altitude as well...all these add to mixture changes and since LA is at or below sea level in most places...your issues are now more evident. ( not to mention the VTA miture issues--but my statements are taking that prob into consideration)

 

Yep, the problem is the BOV. If you log with a wideband you will see very rich spots when you let off the gas, because the air that the BOV vented off was measured to make the right mixture

 

I had the HKS BOV and I was having similar problems.As soon as I put the IX BOV back on the car ran fine.

 

are you using the hks intake?

 

VTA kills MAF equipped evos...well not kills but your idle will suck and you lose power between shifting...RECIRCULATE IT FTW!... ...good luck!

 

Thanks for the advice everyone i will be changing it here shortly

 

I had this same problem with my car it was the TPS sensor I think. It had fallen off cause the little metal clip wasn't on.

 

Whats the TPS sensor and is it an easy fix?