Sometimes when I first start my car, and it seems mostly when my car idles high then lowers, it will feel like it is misfiring some, and will back fire a little. It doesnt happen every time, or in any kind of pattern that I can tell. It feels like it runs fine after. It will throw a code every once in a while, ive scanned it twice and it said egr system both times. I replaced the valve a couple months ago. Any ideas?

 

 

Crap, so if it does it while im in idle and out of gear, it doesnt do anything? That sucks, I hope its not my opti again. I bought a cardone re-manufactured opti. I really didnt want to drop the dough for an MSD.