The ignition control module is a crucial component of a vehicle's ignition system. It is a control unit responsible for regulating the ignition timing and generating sparks to ignite the fuel-air ...

It was time to tune up our 351 Mercury…again. The idle was rough and uneven, the power had dropped off, and the fuel economy had steadily gone from bad to worse. Frankly, we're tired of that routine.

The demands for better emissions and fuel economy in the mid 1970s necessitated leaner fuel mixtures. These leaner mixtures required greater voltage and more spark to ignite. This challenge led GM ...