How to replace PVC valve on 1995 Toyota Corolla?

To replace the PVC valve on a 1995 Toyota Corolla, first ensure the engine is cool and disconnect the negative battery terminal. Locate the PVC valve on the valve cover, then remove any hoses attached to it. Twist and pull the old PVC valve out, and insert the new one, ensuring a secure fit. Finally, reattach the hoses and the battery terminal before starting the engine to check for proper operation.