Hey guys. Im just wondering what are the difference between these two main relays? Left side is come with the car, the right side comes from 99 civic sir. Does this two have an effect on supplying the fuel pump? Thanks!

 

Right looks like a factory oem main relay or oem replacement. ( you may be able to desolder and resolder the cold soldered joints to repair this one )
I have not seen the style on the left. my guess is that it is an aftermarket replacement.

 

I guess they’re the same, thanks!!