Ok well ive been having a problem lately of my idle being weird, when i come to a stop sometimes the idle will drop down to 600 rpms and then when i stop completely they will go up to 900 and be fine. I checked the fuel pressure and everything is good so the fuel pump isnt the issue, and i changed my fuel filter a month ago. I havent noticed any vaccum leaks but i do have an exhaust leak but dont think it would cause this, any ideas??? maybe the tune is messed up???

 

O2 sensor?

 

not throwing a code and just changed those to when i changed my fuel filter not to long ago.

 

Ttt...

 

perhaps MAF?

 

IAT sensor?

 

It's not your exhaust leak thats for sure. nothing you have you need a tune for so don't know what would be messed up with it.

 

i've had this problem and it was a vaccum leak. i think mine initially started last summer then the hole gradually got worse over time and finally creat a hole the size of a dime in a pcv hose. double and triple check all you hoses for vaccum leaks, clean sensors and connectors

 

Yeah check everything from the MAF back for leaks. Same thing happened to both mine and my friends car and it was a leak.

 

also pull your idle air control valve and make sure it's clean

 

well i dont have a pcv sytem, im running a breather setup. ill check the hoses and make sure, hell the hose might have popped off the throttle body or something.