I'm not sure if this is lt1 tech or drivetrain. im putting it in drivetrain because it seems to happen when im in drive and not neutral. I got my subframe connectors installed and welded up today, and now at idle my car feels like it stutters and the rpms are like 600ish up and down a lil. Also, i noticed the guage for the battery moves up and down. I mean it really feels like the car is shaking a little. It only does it at idle when im stopped or almost stopped. any ideas what i should check out? Thanks

o yeah and im waiting for my brother to let me use his laptop so i can scan my car for codes.

 

ttt. im begining to think its something to do with the fuel lines maybe. if he had to move them when he was welding the front left SFC. does that sound like a possibility?



EDIT: yeah it was the fuel lines. the return was crunched off, but its fixed now