Well, now I got the P0305 code.
The car was running fine, then I came to a stop, and as I started to accelerate it started missing and popping...like back firing.
CEL started blinking on/off, and then stayed on continuously.
I do have headers, but I also have DEI boots, and I could smell fuel when I shut the engine off. The car would backfire just idling.
It starts up with no problem, but then starts sputtering and rough idling.
I didn't check the wires yet as the engine is still hot, but will do in the morning.
The dealer did an injector replacement a while ago in cyl.5, but that was under warranty.
I hope it's not that...any ideas if this could be anything else?
And thanks for pointing out cyl 5, I had no idea where that was either!