• When you start a diesel-powered car, the following events occur:
• Based on information from the Engine Control Unit, the glow plug control module determines the timing and electric current required by the glow plugs.
• The glow plug's heating element is electrified, so it heats up and generates visible light (thus the name).
• The intake air has been compressed.
• The fuel injector spray sends gasoline to the glow plug's hot tip.
• Even when the engine is cold, the injected gasoline combines with the compressed air, evaporates, and begins burning practically instantly.
• The glow plug remains on throughout the pre-heating phase to guarantee proper fuel combustion and to limit your vehicle's environmental effect.

How to choose the right glow plug control module?

As glow plugs and glow plugs control modules don’t come in a one-size-fits-all format, it is important to select the correct type for your car and the type of fuel that you use. Additionally, using premium components is recommended, as a low-quality part can cause expensive consequences for your engine. For example, a swollen glow plug constructed from sub-par materials would either be impossible to remove later or the tip would break off in the cylinder, causing damage to the cylinder, valve and head.