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Car Tool AZ Ignition Diagnostic Adjustable Spark Plug Tester Wire Circuit Coil
According to spark color and flash over distance to determine the quality of the coil.
Can intuitively convenient to understand the operation of the ignition coil.
It is the quickest way to test for no-start conditions.
High visibility white lettering makes it easy to read the gap measurement.
Screw assembly adjusts spark gap quickly and easily. Avoid fire, the ignition coil burned out and so on.
1 x Spark Plug Tester