In order to check the resistance in the secondary wire. Test spark plug wires with a multi meter using the Ohm function with positive lead and negative lead on each end of the disconected secondary wire. Resistance varries from different types availble. If the resistance is steady this means the wire is good. If the meter fluctuates high and low this means the wire is bad. I like to look at both digital and analog pointers. I feel the analog reading is another great way to detect a bad wire.
The resistance should be around 75-100 K per 2 foot sections watcha working on??? You can call me anytime to help troubleshooting or any technical advice. I am sure I have a shop manual for any vehicle you own. Not the cheese-ball chiltons or Haynes. But Factory authorized A.S.E. Issued. let me know this is right up my alley lol
Hey Pat, How are you measuring ohms in your test? Just through the wire removed from the motor, or the method that Ara is describing above?
Im not asking any questions Pat. Just doing my job providing information. Thanks. I think you forgot to put a decimal point in your numbers because 1K ohm is equal = to 1000 ohms. Lets not confuse people with k ohms. Less resistance in a spark plug wire or any wire for that matter Voltage travels faster. So when we speak in terms of spark plug wires, a wire with lets say 3 ohms will travel through that wire to the spark plug at a faster rate than say a 4ohm wire. This is actually a big deal when dealing with Ignition Timing because you want the current to reach the electrode on the spark plug as quickly as posible. So if someone adjusts their ignition timing with 3 ohm wires and later on down the road changes the wires to one of greater or less resistance, ignition timing will then be thrown off. By the way, what are you using to obtain all your specs? Is it a computer program? I remember when I was working at this one place we had a program that had all the info we needed much like what you are talking about. I forgot the name of it but there was like 100 discs you can load into the computer. I bet an online version is better than loading discs. Programs like that are paid for and that information is not available without paying for it. I bet that cost alot to obtain.
Don't forget that lesser ohms also means a better spark at the plug do to lower loss of energy. Resulting in easier starts, more horse power, and better fuel economy.
