My fuel pressure guage said to put a 1 amp fuse in the 12V+ wire. However, I have my fuel pressure, boost, wideband A/F, and cutout all wired to the same 12V+ wire going to the fuse panel. This will blow the 1 amp fuse in no time. What size fuse should I go with since these are all tied together? Thanks

 

The heater in a wideband 02 sensor will draw around 2amps max. Why can't you come out of the fuse panel, into all the other gauges, then off that junction into the fuse and fuel pressure gauge?

 

i currently have all 3 of the guages tied into the same 12V+wire right behind the guages. I could rewire all of it but it would take quite a bit of time. I was just curious if I could put a larger fuse in to accommodate multiple guages hooked up to the same 12+ wire.

 

Yes, a 3amp fuse is probably fine.