Can a misplaced fuse actvate the engine light?

Yes, a misplaced fuse can activate the engine light. If the fuse controlling critical engine components or sensors is removed or incorrectly placed, it can disrupt the electrical system, leading to a malfunction that triggers the check engine light. It's important to ensure all fuses are properly seated and functioning to avoid such issues. If the light remains on after checking the fuses, further diagnostics may be necessary.