I think the car wont start... or something else gonna wrong... I don't know, I didn't do it ever - why should I ?

What I really mean is:
In the fuel-pump-relay are some pins, there fits fuses and some stupid people think, it's wise to plug in a fuse in a place that seems to be so... BUT there SHOULND'T be a fuse -> Only if you want to read out the engine failure codes and transmission failure codes through the transmission-position lamps (I don't know what the name is for that PRND321-thing in the dashboard)!