Expect to experience misfires and rough idling, too. When your ignition coil fails you can expect to experience a variety of problems such as: Misfiring Engine, Rough Idling, and Power Lossīecause the ignition coils work to help achieve successful combustion, when they go on the fritz, you will notice your engine becomes much less reliable and its overall performance decreases. Common Occurrences when your Ignition Coil Fails Humidity in your engine created by liquid left behind by engine washing can cause contact faults to occur. When either the valve cover gasket fails or the ignition cables become damaged, the risk of spark over and accelerated wear will increase greatly. A weak battery or faulty wires can contribute to this problem. This is commonly caused by wear or when the ignition coil gets overloaded. The ignition coils will be less effective and take longer to charge if the coil receives an inadequate voltage supply. This can happen due to age, problems with modules, or issues with the electronic control unit’s output stage. The ignition coil commonly short circuits because it has overheated. There are four common causes of ignition coil failure in your Volkswagen: 1. They will be installed at the head of the cylinder above the spark plug. You will find single-spark ignition coils in systems that have a primary and a secondary wiring assigned to each individual cylinder. They also only have 1 secondary winding and 2 spark plug connections at each output. Four-spark ignition coils have 2 primary windings which can be triggered by the engine control unit. This type of coil only features in 4 -cylinder engines. Dual spark coils have 2 connections on each winding. There are 3 different types of ignition coil used in modern cars: Dual Spark Ignition CoilĪ dual spark ignition coil can only be used in engines that possess an even number of cylinders like a V8 or V12.
The ignition coil is made up of several parts including an iron core, electrical connections, and a primary and secondary winding.
Its purpose is to change low-voltage electricity from the battery into high-voltage electricity for use by the spark plugs. In layman’s terms, the ignition coil is a small transformer. Dual, Four Spark, and Single Spark Ignition Coils To unravel this problem, let’s look at the 3 types of ignition coils, what causes their failure, and discuss how you can tell if total failure has occurred in your Volkswagen. Over a period of time, a faulty ignition coil in your Volkswagen will also take a toll on other parts, such as the spark plugs. When the ignition coil fails in your Volkswagen, you are going to notice some annoying symptoms pretty quickly, such as misfires and power loss. What Can Go Wrong with Your Volkswagen’s Ignition Coil? by schearerswpadmin February 23, 2020