Dodge Journey persistent engine light on with Cylinder 2 misfire despite spark plug and coil replacement, remains in limp mode on Dodge Journey

Some Dodge Journey owners report experiencing a persistent engine light due to a Cylinder 2 misfire, despite having replaced spark plugs and coils. These owners often find that further diagnostics are necessary to identify the root cause of the misfire, which may include reading stored diagnostic trouble codes. Additionally, some owners discover that the new ignition components require inspection to ensure they are functioning correctly, including verifying the proper gap and position of spark plugs and testing ignition coil packs. A faulty fuel injector is another potential contributor to the misfire, prompting some owners to examine fuel injectors for clogs or malfunctions. Low cylinder compression can also lead to misfires, so performing a compression test on Cylinder 2 is recommended. Wiring issues, such as faulty connections, may disrupt the ignition system, necessitating checks on the wiring related to Cylinder 2. After addressing the underlying issues, some owners opt to reset the check engine light by disconnecting the battery. If the misfire persists, seeking professional assistance from a qualified mechanic or dealership is advised for more comprehensive diagnostics and repairs.