MAF help! P0103

This issue is driving me nuts. My car is driving rough at idle and bogs under heavy acceleration.

Check engine light is on... The error code is P0103.

So far:

The MAF has been recently replaced.
There were 2 split wires by the MAF.. so I spliced in a new plug.
The filters look clean.

Is there any way to ohm the wires and the sensor? Is there something else I can check/do... My battery light has been on for a week and died last night. It was replaced this morning but the light is still on, can this be a part of my issue; or just a separate frustration?!?

Alright, so just finished replacing all the wires from the plug up to the ECU. Instead of just the 2 that were originally broken.
It seems to have solved the issue... (hasn't been test driven yet. Too frustrated to do so.)

So.. Problem solved. I hope.