I had unplugged my MAF sensor a couple times to see how my wagon would run the other day, turned off engine and when I went to crank it again it would not. No dashboard lights came up or flickered, no power to headlights, but could hear the starter click.

I jumped the battery and I could get it to start up again, ran the engine and went for quick drive, drove fine. However I run into the same issue again and cant really think of whats causing it. Was suspecting a bad ground but not sure

Any ideas or advice thx

 

Hard to imagine how pulling the MAF sensor plug would drain your battery. I would give your battery a full charge and diagnostic. You might be due for a new battery. If it takes a full charge, then clean the poles and the clamps.

 

Careful with the MAFS, plugging/unplugging it while the engine is running kills it. But it can't kill the battery... there may be other issues like starter, ignition switch, etc.