Resistor

The Resistive spark plug has an internal eletrical resistance that normally is between 3 and 7,5k and in the some cases is between 1 and 2 , both have for function reduces the noises and electromagnetic interference caused by the vehicle's ignition system (RFI). This interference is extremely harmful, mainly in the current vehicles that possess diverse electronic systems, such as:

• eletronic fuel injection.
• automatic transmission.
• electronic control of traction and stability.
• Air Bag system.
• CAN net.