Designed to control the your engines spark and ensure optimum performance. Efficient dwell control for easy starting and smooth engine spark even at high rpm. Controlled firing of the ignition coils to prevent overheating and premature failure. OE fitment Ignition Module AFI JA1042 Ignition Modules are a critical part of your vehicles engine management system. Designed to control the your engines spark and ensure optimum performance in: - Efficient dwell control for easy starting and smooth engine spark even at high rpm. - Controlled firing of the ignition coils to prevent overheating and premature failure. AFI Australian Fuel Injection source their premium quality ignition modules from a range of OE and aftermarket suppliers including Bosch, Delphi, Denso and Walker specific to your vehicle.