What is accurate regarding coil packs in a FADEC Powerlink ignition system?

In a FADEC Powerlink ignition system, coil packs are integral components that manage the ignition process based on precise engine parameters. High voltage units in such systems are triggered by the crankshaft position, which ensures that the ignition process is timed accurately with the engine’s cycles. This connection to the crankshaft position allows for better synchronization of ignition timing, enhancing engine performance and efficiency.

By responding to the exact position of the crankshaft, the coil packs can deliver high voltage precisely when needed, optimizing combustion and reducing emissions. This process is part of the automated control that FADEC systems bring to engine management, making them more efficient and reliable.

The other options do not reflect the operational characteristics of the coil packs in a FADEC system. The system's dependence on crankshaft position ensures that the timing of ignition events aligns with the engine's operational demands.