Engine missing and backfiring

I was crawling around the car today and I found a fuse panel up under the passenger side dash. Of course it's not in my book or could I find it online so I just started pulling fuses. The second one was one of those little red 10 amps and it was burnt out so I replaced it and the car started right up. So that's out of the way. Now for the mass air flow or whatever it is.I took it to the only shop we have in Happy Camp and Al looked at it and said he'd never seen anything like it but he said since it has a spring in it he thought it was the PCV, Any way I'm taking it to him in the morning and he's going to put the OB1 on it and see if he can figure out what's wrong. I will let you know what comes of it. He's the one that originally coded it for me 2 month's ago and hasn't done anything for it since. So I don't hold my breath. I told him I can fix it if he just test's it and tells me what's wrong. I figure 50/50 chance. I'll let you know.

I don't know if I told you but I was at Al's shop last Friday trying to get him to test the car, but he told me to come back the next day. Well when I went to leave the battery was dead, so Al brought out this huge yellow jumper box and gave the car a zap. I mean that car started right away, The zap was very powerful, I could feel it when it cranked it must have been a 50 amp jolt. So I drove home and and that's when it wouldn't start anymore, I think his jumper fried that fuse.

Here's an update Kenny:

We were checking the spark and a couple cylinder were weak. So I thought it was the plug wires. So I drove 150 miles to Yreka and got a set of wires. But when I put them on it didn't make much difference. I started pulling the wires of from the coil pack 1 by 1 and the pack I have has 3 coils. Each one does 2 cylinders. Well the bottom coil was the weak one, I had to order it online. I'm supposed to get it tomorrow. I've got my fingers crossed. I'll let you know.

New coils, Still not much difference. Starts missing as soon as it goes under a load.

Tomorrow it goes into the shop for more testing.

Running like a dream. Turned out to be the middle sparkplug in the back.

The thanks goes to you Kenny, You very patiently guided me along and I needed that. Thanks for all your help. Let me tell you where I'm at now. Al my mechanic friend told me to take the battery terminals off and touch them together to clear the check engine code. Well I did that, but what is amazing is I put the positive terminal back on the battery and then started on the negative. While putting on the negative the engine started cranking, But I had the key's in my pocket so I thought at least it won't start, but oh yea. It started. I put the key in the ignition and turned it on but nothing happened, It kept running, I turned it to the off position and it kept running. Then I put my foot on the brake and it stopped. So I tried to start it with the key and it worked. It also didn't clear the code. I've changed a lot of batteries in my time, But I've never had one start while doing it. Maybe this has something to do with the battery dying. The mystery continues?