There is a short in that line.
there are only 2 ways to fix it.
the best is using and ampclamp type DC ammeter.
this makes the job childs play.
cost about 1hr shop labor.
if you want to know who shorts. its all here
alldata dot com.
SOURCE: 1990 toyota pickup 3.0 v6,engine
This is an unfortunatly common problem with this vehicle, if my hypothesis is correct. Try this: disconnect the wiring connector going to the fuel tank, under the bed. Replace the fuse and crank the engine. If the fuse does not blow, then the power wire going to the fuel tank sending unit is shorted out to ground. I change about 15-20 fuel sending units a year for this exact same issue. Replace the fuel tank sending unit if the fuse does not blow. When you get it out, you will see the cause of the short, rust at the connection on top of the sending unit. Hope this helps.
SOURCE: keeps blowing 15a efi fuse 1991 toyota pickup 2.2 re
there's a short somewhere causing that amperage to go up
SOURCE: 1992 toyota pickup , blowing efi 15 amp fuse in
Check the circuit opening relay, located behind glove box or kick panel on right.
Look for signs of corrosion, this fuse only powers the fuel pump and the engine ecu
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These will help.
Thanks.
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