Toyota Repair: Toyota pickup O2 sensor, spark plug wires, spark plug wire

Question
Ted,

Could you kindly email the wiring schematic for my 1993 Toyota 4-cylinder 2WD to:
info@horizonassembly.com?

Also, what is good and proper maintenance regarding spark plug wires? Should the entire set be
changed out every so often? If so, how often?

thanx a bunch
Answer -
I have mailed the information to you.

Question -
I appreciate the diagram, did you have any comment concerning my spark plug wire question?

Answer
There is no specified maintenance for spark plug wires, if,in your case they are the original wires I would recommend replacing them along with the distributor cap and the rotor, these items normally last around 80,000 miles, maybe more or less depending on driving and environmental conditions.