What is the ignition or preheating system? The
ignition or preheating
system of a combustion engine including the one in your car is very complex. It consists of several
ignition parts each having a very specific role to play. Petrol engines have an ignition system with
spark plugs whereas diesel engines have a preheating system with
glow plugs. Whatever the type of your engine, plugs are essential for the starting of the engine. Obviously there are other
car parts that are equally important in the ignition or preheating process, including the
ignition coils, or the
HT leads for example.