The Micro-Tec Spark Plug Wire Tester is a fast, reliable diagnostic tool designed to quickly identify faulty or damaged spark plug wires — even in hard-to-reach engine bays. The built-in indicator light flashes to confirm a healthy ignition signal, helping technicians instantly pinpoint misfires, weak spark issues, and wiring faults that affect engine performance, fuel economy, and emissions. With an insulated grip that prevents spark jump and an attached ground wire for stable testing, this tool is safe, convenient, and essential for every automotive workshop or mobile mechanic.

• Quickly locates faulty or weak spark plug wires
• Long reach design for accessing difficult areas in the engine bay
• Flashing indicator light shows when a wire is functioning correctly
• Insulated handle prevents spark jump for safer operation
• Built-in ground wire ensures stable and accurate testing
• No shock hazard u2014 safe for technicians and vehicle electronics
• Helps diagnose issues causing poor performance, high emissions, and reduced fuel economy
• Ideal for automotive workshops, mobile mechanics, and diagnostics kits