sputtering

As stated in the title, my cobra is sputtering and backfiring below 3 to 3500 rpms then smooths out, it seems to me like its missing fairly bad. Its hard to tell during idle since it has stage 3 cams installed and i'm fairly new to this car so I cant say for sure. It's also worth mentioning...

I bought my 2003 Cobra in late June. About 60k miles. It was running fine for the approximately 10 days of driving it over the course of about a month. The car sat for a week in the garage while I was on vacation. Possibly relevant mods are 2.3 Whipple, 2 LB lower, 3 inch upper, Lund Tune, 60 LB...

Hey friends, I have a 99 Cobra and recently, out of the blue, I've been getting a P1233 and P0602 codes popping on me. It's strange because it runs great, and completely randomly my idle goes to hell and I can't give the engine any gas with out it sputtering to death and EVERY TIME I know it's...

Hi guys im new to this site but have been reading on this problem that seem others have had but not sure if there is a true fix or what the issue is so heres my problem... I bought a used 04 cobra with 50K miles on it. All stock ran perfect until i decided to change the plugs out. I...

Okay so I will say this. I have searched and searched the forums, google, etc. and cannot seem to find a case such as mine. I have been finding similar cases but have not had any results. Basically my car was hit in the front by a truck and had to have the drivers side fender apron and radiator...