That is a body to engine ground wire.
If its a v6 the #6 wire goes on the passenger side closest to the firewall. If its a v8 the #6 wire goes on the passenger side 2nd closest to the firewall.
Its the brown wire from the distributor, goes to the fuses/relays on your firewall. unhook that and you will have your base timing.
use a razor blade and slice a small slit the size of the wire in the rubber boot that the brake cable or throttle cable goes through, it may be easier to put the wire through the steering columb boot. after u put a slit in the rubber boot just push the wire through.
The 2nd yellow wire goes to power, (usually a thicker red wire)
I'm sorry, but WHAT DID YOU DO!?!?!?
I believe it is behind the engine on the firewall. It is a single wire and connection that breaks out of the main harness.
one white wire goes to the distributor, the other goes nowhere. This is the lead that goes to the tach
For the coil which is closest the the radiator: first wire goes in the cylinder one (first one from the passenger's fender). Second wire in the coil goes in the cylinder #3. For the second coil which is closest the firewall, first wire starting from radiator goes in the cylinder #2 and second wire in the #4.
there should be a screw on the back of your tach, remove screw and cover careful not to pull the wires. there should be a switch labled 4,6,8 for number of cylenders. put it on six if that's what you have. red wire goes to switched 12v (best bet is on yourr fuse panel), white wire goes to instrument cluster light switch, black is obviously ground, and the green wire goes to your coil. if your blazer has the 4.3 your coil should have two harneses each with two wires. one set of wires, red and white(closest to the firewall) goes to your distrubuter. the other harnes should have a red wire and a white or tan wire. the white wire farthest from your firewall (on the right side of the coil) is where you should connect your green wire. hope this helps
Timing connector is located rightside passenger floor where the carpet meets the firewall inside
Need to know what engine you have.
Connect a ground wire to what? If you mean from the engine block to the firewall or frame - it ia always recommended that a grounding strap be connected between the two.