Mitsubishi Outlander Sport recurring engine light and misfire issue despite recent coil pack and spark plug replacements on Mitsubishi Outlander Sport

Submitted by Vehicle Owner · Jul 25, 2025
Published by RepairPal

Problem overview

Some Mitsubishi Outlander Sport owners report experiencing recurring engine light and misfire issues even after replacing the coil pack and spark plugs. These problems may stem from faulty parts, as new components might not be functioning correctly or may not be the right fit for the vehicle. Additionally, issues with the ignition system, such as faulty spark plug wires or ignition coils, can contribute to misfires and trigger the engine light. Some owners also find that oil leaks in the spark plug tubes can affect ignition coil performance, leading to misfires. To diagnose the issue, some owners utilize diagnostic tests to clear trouble codes and monitor the check engine light for persistent problems. Cylinder-specific testing, where ignition parts are swapped between cylinders, can help isolate the source of the misfire. Consulting Technical Service Bulletins (TSBs) may also provide valuable insights into common issues and manufacturer-recommended solutions. Furthermore, monitoring for symptoms like rough running, power loss, stalling, and changes in fuel mileage can indicate ongoing misfire issues. If these problems persist despite troubleshooting efforts, it is advisable for owners to seek assistance from a qualified mechanic or dealership with expertise in Mitsubishi vehicles for a thorough diagnosis and comprehensive solution.

3 people reported this problem
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Mitsubishi Outlander Sport vehicles with this problem

1 model year affected
Average mileage: 82,500 miles
(80,000 - 85,000)

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