Dacia Duster Misfire Due to Ignition Coil Failure

Ignition coil failure is the most common cause of multi-cylinder misfires in Dacia engines. This is confirmed by performing a 'Swap Test': move the ignition coil from the affected cylinder (1 or 3) to a known healthy cylinder. If the misfire code follows the coil to the new cylinder (e.g., P0302), the ignition coil is confirmed as the faulty component.