[Shotimes] Help - Sporadic Ignition Miss

[Leigh Smith]

I've got a sporadic ignition miss on my 94 MTX that I can't identify the 
root problem.

Cleaned oil from wells, didn't help. Got a front Oxygen sensor code. 
Would that cause a miss?

Supposed to have new plugs/wires. Found this really bad ignition wire 
connector, but it has low resistance, good spark. What would cause this? 
Water? Cleaning solvents? Sparking?

http://www.concentric.net/~leighsm/Leesho/SHOWire.jpg

Leigh