I just bought a 90 v6 SR5 4wd ext.cab truck, and after starting it up for a couple of minutes, the CEL came on, and after a short drive, the car started to buck and sounded like it was misfiring or not getting spark on all 6 cylinders,poped the hood open, found out that the distributor bolt wasn't tight and that i was able to move it around by hand about 1 1/2 inches either way. So i figured that it's a timming issue and parked the car and was afraid to drive it, came back with a friend afterwards, except this time the moron forgot his 12mm wrench, so we tightened it down using a pair of pliers, truck did the same thing as before, except the CEL went away for a minute or 2 after coming on. I'am wondering if this distributor issue sounds like it's directly related, and if this would cause a CEL. Oh, and where can i get any pc scanning tools for our trucks ? Serial cable? Software ? The cvs(axles) are also shot and click when i put it in 4wd and try and turn either way (fine if i leave it in 2wd though).

Thanks in advance