a freinds ls1 misfires whern cold outside and when low on gas???
what gives?
the code is for bank 7 coil, we put a new one and a new wire on it, so is it the injector?

 

swap coil packs...there could be a faulty wire in the harness

 

code is for bank 7 coil, we put a new one(coil) and a new wire on it

 

I had this happen, but it did not throw a code. Drove me nuts. Found a spark plug wire boot was split up the side a litte allowing it to arc with the insert. Check all the plug wires and boots.

 

What does a misfire feel like?

For the past month, when I'm at a light or idling, my car feels like it wants to stall out one minute, and the next it'll idle like a Lexus.

The RPM and oil pressure needles both stutter somewhat, but once I take off and go on my way, everthing's fine.