When colliding with "Wall" object another is enabled.

In my car game, if the engine is hit, I want to enable a fire particle effect attached to the vehicle. I've tried instantiate, but that makes the fire object appear where the engine was hit, i want it to be enabled as it has to move with the vehicle. Here's what I tried but I'm not sure how to use the .setActive(true) function, please reply with a script and explanation please!

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class Engine : MonoBehaviour
6. {
7.  
8.     private void OnTriggerEnter(Collider other)
9.     {
10.         if (other.CompareTag("Wall"))
11.         {
12.             gameObject.setActive(true);
13.         }
14.  
15.         if (other.CompareTag("Floor"))
16.         {
17.             gameObject.setActive(true);
18.         }
19.     }
20.  
21. }