- Engine Stalling: If the ignition control module is faulty, it may cause the engine to stall while driving or idling. This happens because the module is responsible for controlling the timing and duration of the spark, and if it's not working properly, the engine will not receive the necessary spark to keep running.
- Engine Misfiring: A bad ignition control module can also lead to engine misfires, which can cause the engine to run rough and hesitate while accelerating. This is because the module is responsible for sending the correct spark signal to each spark plug, and if it's not functioning properly, the spark timing will be off and the engine will misfire.
- No Spark: In severe cases, a faulty ignition control module can completely prevent the spark plugs from firing, resulting in a no-start condition. This happens when the module is not able to send any spark signals to the spark plugs, preventing the engine from starting.
- Check Engine Light: If the ignition control module is failing, it may trigger the Check Engine Light to come on. This is because the module is part of the engine management system, and when it's not functioning properly, the engine computer may detect an issue and illuminate the Check Engine Light.
- Reduced Fuel Efficiency: A bad ignition control module can also affect fuel efficiency. This is because the module plays a role in controlling the timing of the spark, and if it's not working properly, the engine may not be able to burn the fuel efficiently, resulting in decreased fuel economy.
It's important to have the ignition control module diagnosed by a qualified mechanic if you suspect that it may be faulty. They can perform tests and inspections to determine if the module is the cause of the problem and recommend the appropriate repairs.
