Changed spark plug leads, now blowing 15A engine fuse

[TitaniumTT]

A bit of a strange one here. A few days ago I changed my spark plug leads to some RE Ameniya ones as my current ones have been on almost 19 years I think and their resistance was way higher than what they should be. Anyway, I turn the key and the engine fires for a second and then dies. I think it's flooded so check the wiring and pull the plugs but no fuel and all seems well. But it still won't fire.

I did some troubleshooting and found that my 15A engine fuse was blown. So I replaced it and rechecked the plug wires to make sure they were fully connected but it blew straight away, even with the key just put to the "on" position (not even starting). I started to wonder if it was some of the wiring in my fuel pump rewire modification that I'd done so I pulled the 15A fuse going from the battery to my new fuel pump relay to check, but as soon as the key goes to the "on" position the 15A engine fuse will keep blowing.

Have no idea what I could have done that would cause this fuse to suddenly keep blowing; could I have knocked something near the ignition coils when I was replacing the leads? Any thoughts on the problem and how to solve it would be greatly appreciated

[soldave]

A bit of a strange one here. A few days ago I changed my spark plug leads to some RE Ameniya ones as my current ones have been on almost 19 years I think and their resistance was way higher than what they should be. Anyway, I turn the key and the engine fires for a second and then dies. I think it's flooded so check the wiring and pull the plugs but no fuel and all seems well. But it still won't fire.

I did some troubleshooting and found that my 15A engine fuse was blown. So I replaced it and rechecked the plug wires to make sure they were fully connected but it blew straight away, even with the key just put to the "on" position (not even starting). I started to wonder if it was some of the wiring in my fuel pump rewire modification that I'd done so I pulled the 15A fuse going from the battery to my new fuel pump relay to check, but as soon as the key goes to the "on" position the 15A engine fuse will keep blowing.

Have no idea what I could have done that would cause this fuse to suddenly keep blowing; could I have knocked something near the ignition coils when I was replacing the leads? Any thoughts on the problem and how to solve it would be greatly appreciated