Would a fuse cause the check engine light to come on in dodge neon?

Yes, a blown fuse can cause the check engine light to come on in a Dodge Neon. Specifically, if the fuse that supplies power to the engine control unit (ECU) blows, the ECU will not be able to function properly and the check engine light will illuminate. Additionally, other fuses related to engine sensors and emissions control systems can also cause the check engine light to come on if they blow. If you notice the check engine light illuminated in your Dodge Neon, it's recommended to have a mechanic diagnose the cause and replace any faulty fuses as necessary.