Incredible 1997 Subaru Outback Check Engine Light References. Web the check engine light comes on when the ecm (engine control module) recognizes a malfunction with an emissions control device or an emissions control device monitoring system or if a specific condition is not being met. Back to car care tips.
Your subaru’s check engine light could indicate a problem with a sensor or system in your vehicle. Convenient location) about a week later my check engine light started coming on and off. The oxygen sensor is an important component of the vehicle’s emissions control system, and it monitors the amount of oxygen in the exhaust gases.
