The answer to 'rewiring sparking' is that sparking or arcing in electrical wiring is a serious issue that requires immediate attention. Sparking can be caused by loose connections, damaged wiring, overloaded circuits, or water damage, and it poses a significant fire hazard. If you notice any sparking or arcing, it's crucial to turn off the power to that circuit and call a licensed electrician right away.
Attempting to fix sparking wiring yourself can be extremely dangerous and should only be done by a professional. Electrical work requires specialized knowledge and tools to ensure safety and code compliance. Trying to DIY this type of repair could lead to further damage, injury, or even a house fire.