Hi, I hope this is in the right place.

On Saturday I changed the fuse for my Cig Lighter, but in the process of finding out which one that was (no owners manual!) I took out a lot of fuses and then replaced them.

Since then, half the time when I turn the engine on, its running at near 1500 revs and the other half its at the usual 900sh

Is there anything I can do to make this normal again, as it's worrying me