replace it. if it blows again, check for other problems. Those are all dedicated fuses, they usually start most of the circuits in the car. Check the wires from the battery and then check the wires from that dedicated fuse box, that has the mpi fuse, to the fuse box that has the fog light fuse and relays and the alt. fuse is on it too. That's the subfusible link box. The wires that run from that box follow down the entire front engine wiring harness, underneath the radiator and into the driverside of the firewall. I wouldn't worry about that yet though. Just check under those two boxes for any burnt or visibly melted wires if the new fuse blows.

thanks will do.