Upgrade Your Car's Ignition System with This Adjustable Spark Plug Tester and Diagnostic Repair Tool.

uickly diagnose problems with all ignition systems

Connect the tool between the spark plug and the plug wire

Normal sparks of fire gauges as "purple blue and 2cm straight line," if the ignition coil is bad when the color is red or curve

Use this ignition spark tester to check the condition of the ignition system at each cylinder without going to expensive mechanics. The spark tester connects between the spark plug and spark plug wire in seconds to troubleshoot dirty spark plug connections, defective points and bad cables or connections. Connects in seconds