Ignition coils: NGK clarifies myths and truths about the component.
10 Dec 2021
2 min reading
Ignition coils: NGK clarifies myths and truths about the component.The company specialized in ignition guides on the main doubts related to the product. The ignition coil is a fundamental component for the proper functioning of the engine, For this, periodic review is extremely important. NGK, ignition specialist brand, Clarify 5 myths and truths related to this product. Worn spark plugs decrease coil life. Truth.It is the leading cause of ignition coil failure. "Spark plugs in poor condition require a higher voltage to generate a spark, what consequently, causes an overload in the entire ignition system, including coil and cables ", explains Hiromori Mori, NGK Technical Assistance Consultant. Whenever we perform a spark plug check, it is also necessary to check the coils. Truth."How worn spark plugs can impair the performance of the coils, it is extremely important that the component is inspected whenever there are spark plug failures to ensure that no damage occurs "All coil types require the same types of tests.Myth.Both the static versions and the individual coil versions go through the same types of tests by mechanics during revisions.. Thus, the coils with the integrated ignition module do not perform the resistance test. A visual analysis of the coil is sufficient for a correct inspection. Myth.The inspection of the coils must be carried out in two stages. The first is by performing a visual check, where it is possible to detect cracks or cracks in the body of the piece and oxidations in the high voltage towers and terminals. Already in the second stage a measurement of the resistance of the primary and secondary circuits of the coil is carried out., supply voltage, secondary voltage, coil command signal and coil module signal to computer (feed back). “Coils that have the integrated ignition module, resistance test is not carried out ", orients Hiromori Mori in this way. Reference values for these tests can be found through the NGK Customer Service Center at 0800-222-2821. In the event of failure of individual components, all coils must be replaced. It depends.When one of the coils has problems, means that at some point, the others may fail. "For this, it is important that the mechanics carry out a detailed analysis of all the parts to avoid future damages to the customer with a new replacement ", alerts the NGK Technical Assistance consultant. Download
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