Spark Plug Wire Resistance
If spark plug connectors have sheet metal jackets carrying the following symbol ( ), they contain "air gap" resistors. Wires cannot then be checked for resistance using an ohmmeter. An oscilloscope must be used.
If spark plug connectors have sheet metal jackets carrying the following symbol ( ), they contain "air gap" resistors. Wires cannot then be checked for resistance using an ohmmeter. An oscilloscope must be used.