I was wondering if a rough idle could be fixed with a dyno tune or a mail order tune(SCT). Should i try that, or just take it to a shop and have them find and fix the problem.

 

Most likely it's a bad sensor, so you'll need to bring it to a shop to have fixed.

 

Thanx jthorn

 

IACV- Idle Air Control Valve usually the first thing to go motor-wise on FI vehicles im told...just pull it out and clean the carbon off of it or buy a new one for like $100 which i did before i knew i could just clean it...