Question about ECU resetting Options

[mkernz22]

So the other day I installed new fog light on my car and the battery was disconnected for about an hour or so, probably longer.
Before the fog lights, when I started my car up in the cold it would rev between 1.3k and about 1.7k and it would start right away too.
The day after I put the fog lights on, I started it in the cold and it rev's around around 1k - 1.1k, and it has a weak, dreaded start.
After I got out of my co-op job today, I started her up and she started fast, but was revving around 1.1k so to warm the engine up more, I pushed the gas for a few seconds. Once I let go, the rpm's started dropping and the engine stalled. I started her back up, she went to 1.1k then started driving before the engine stalled again. Didn't stall on my way home.

Basically, I'm not sure what the problem is, but since the ECU got reset, would this have effected my A/F ratio and made my engine stall or would it be something else that is causing the problem?

[presure2]

all you need to pull is the EFI fuse for ~10-15 seconds, according to the BGB.