Ok, so when I start my car after it has been sitting for a while -typically overnight- it will start surging like it's going to die and then fluxuate back up again. It's in the 1500-500 rpm range, and when I try to give it gas it will bog, or lower the rpm's back down again and act as though it's going to stall. Usually after turning the car off and starting it back up a couple times it will go up to 2000 rpm's and settle back down to 1500 and idle/run fine the rest of the day. Any ideas would be greatly appreciated, and if this question has been posted before i apologize but I couldn't find anything about this topic after looking for quite a while.

Oh and I live in washington state and it's regular temp's outside 50-80 degrees so i dont think weather has anything to do with it.

Mods: Turboback exhaust, Filter, EBC, SAFC NEO

 

how long do you let your car warm up in the morning before pulling out? when is the last time you cleaned your maf sensor?

 

warming the car up is a must. i let mine run from 5-8 min every morning at the least. check connections and make sure there isnt any leaks....

 

i had the same problem with my 02 but mine was worse mine actually would stall out on me i took it to the **** at mitsu and the told me some throtle body bull crap and long story short 1500 fix, took it to my local machanic took him 5 minutes to adjust the idle speed with some little tool he had ever since then the car idle perfectly

 

but your car is nothing like ours

 

aww man i wasent paying attention lol my bad but it might be it

 

Normally I let it warm up for at least 8-15 minutes before going anywhere in it, I have a remote start so it has a chance to warm up. Im wondering if the Idle Air Valve is sticking or something, and no i havent cleaned the maf sensor, the car has about 30k miles on it should I be needing to do that already?