rough idle with a twist

[hovocop]

So my expy was running good, and I decided to cause drama....... I know, if it aint broke, dont fix it. I changed some of the fuses with ones that light up when they blow. Immediately, check engine came on, and rough ride. I disconnected battery, changed back fuses, and reconnected battery. ALMOST everything went bacfk to normal. Idle is a little rough now, but no check engine light......... any ideas??????

 

[Exia]

Run your DTCs see what showed up, I wouldnt think fuses would cause something like that. Cause a fuse is used to complete a circuit