Nissan Quest 2004 ignition coils and ECU failure due to broken ground cable on Nissan Quest

Some 2004 Nissan Quest owners report experiencing issues with ignition coils, leading to engine hesitation during acceleration, rough idle, misfires, excessive fuel consumption, and the illumination of the check engine light. These problems can result from ignition coil failure, which may cause misfiring when proper voltage is not delivered to the spark plug, leading to sputtering and difficulty in maintaining engine performance. Additionally, some owners have reported ECU failure stemming from ignition coil issues, where a blistered ignition coil sends incorrect signals to the ECM unit, potentially causing the vehicle to stall and resulting in a loss of power steering and brakes. Addressing these ignition coil and ground cable issues is crucial to prevent further complications with the vehicle's performance and safety.