I have a 97 dodge caravan engine 3.0. When I start to accelerate my engine fuse 20amp blows. I does not occur everytime but yesterday, it did it 6 times and is now getting looked at. I am just curious on what causes this. I did recently have my spark plugs changed so I am thinking something may be arching.

I do have codes that previously came up for my fuel injectors (P0203, p0206). Another code I have is p1294 idle speed performance.

What 20 amp fuse, where is the fuse located?

It is under the hood on the drivers side. It says Engine 20A.