Time: 2024/4/30 AEM: sales-21@qbhscope.hk share to 
What Does an Ignition Coil Tester Do?
An Ignition Coil Tester is a reliable device created to promptly demonstrate whether your ignition coil operates correctly. It's an indispensable tool for car owners, helping evade potential ignition-related issues that could culminate in vehicle failure.
What are the common signs of a malfunctioning ignition coil?
1.Engine Misfires: One of the most common symptoms of a failed ignition coil is engine misfires, which are known to occur at irregular intervals. This can be felt while driving, as the vehicle may jerk or stutter when moving.
2.Rough Idling: If your vehicle is vibrating or sputtering while idling, this can be a sign of an inconsistent ignite in the engine's cylinders, which could be attributed to a faulty ignition coil.
3.Poor Fuel Economy: Despite maintaining consistent driving habits, a sudden decrease in miles per gallon may signal an ignition coil issue, as a malfunctioning coil can cause the engine to consume more fuel than usual.
4.Difficulty Starting the Car: If your vehicle seems challenging to start, especially in cold weather, this could be due to a faulty ignition coil.
5.Engine Light Comes On: Many modern vehicles have an engine warning light that can illuminate on the dashboard if the vehicle's diagnostic system detects an irregularity, such as a malfunctioning ignition coil.
6.Power Reduction and Poor Performance: A malfunctioning ignition coil can cause the engine to lose power and result in a decrease in acceleration, speed, or responsiveness than usual.
7.Unusual Engine Sounds: An engine that is working harder due to an ignition coil problem may produce unusual sounds like clunking, knocking, or hissing.
Why is it Important to Test Your Ignition Coil?
Simply put, the ignition coil is what brings your car to life. It transforms the low voltage from the battery into the thousands of volts necessary for forming an electric spark in the spark plugs, which ignites fuel. Regular testing via an Ignition Coil Tester confirms that this crucial component is working properly, contributing to maintaining your car's optimal performance.
How do you Use an Ignition Coil Tester?
1.Disconnect the Ignition Coil: Always ensure all components connected to your coil are disconnected to prevent potential mishaps during testing.
2.Attach the Coil to the Tester: Connect your Ignition Coil Tester, confirming a sound connection between the coil and the spark plug lead.
3.Configure the Tester: Proceed to adjust the gap device to the appropriate setting based on your specific tester's instructions.
4.Initiate Ignition Coil Testing: Engage the tester in accordance with your tester's instructions. A successful test will prompt a visible spark in the tester window.
5.Interpret the Results: If your ignition coil is functioning correctly, a spark will bridge the tester's gap. Conversely, a faulty coil will present with no spark or a weak one.
