- Tools & Garage Gear
- Lisle Spark Tester
Test and Confirm Ignition Spark
Testing the ignition spark is as simple as plugging the Lisle spark tester into the spark plug and onto the plug wire. This tester is compatible with both straight and 90-degree spark plug wire boots and includes a 7-inch extension for recessed and difficult-to-reach coil-on-plug setups. Confirm that your engine receives optimum spark and attain maximum performance.