1998 Ford Mustang Instrument Cluster

I took my car in for a smog test last week. (California). It failed the functional test due to the MIL and VSS malfunction. Prior to this my speedometer did not work, I had been waiting on getting a job to fix that. I didn't even notice that the check engine like (MIL) would not come on when I start my car.

I got some diagrams and decided to check it out myself. I took our the instrument cluster and verified all the bulbs were good. I took a multimeter and started checking the resistance of the related terminals on the wiring harness. I was getting signal from the VSS, but not from the MIL it seemed. Then my hand slipped, being in a tight spot trying to keep the leads of the multimeter on the terminals of the harness, and there was a small spark. Keep in mind I had the battery connected to do the tests. After connecting everything I tried to start my car and it wouldn't turn over.
When I turn the key I don't hear the click of the fuel pump. I have some lights on the cluster but some are off (such as the battery light). All other guages look good, and I can turn on the lights. I checked all the fuses and they are good.
So what's going on? Did that spark short something? How can I track it down or should I even try?