Question about 2003 Toyota Sienna

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EFI FUSE BLOWS

I recently swapped a hydrolocked engine in a 2003 sienna with a motor from the junk yard. We plugged everything up and as soon as I turn the key on, the EFI fuse blows. Can someone help?

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  • yadayada
    yadayada May 11, 2010

    U have a shorted engine harness

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U can use a headlight to find the short use a old style headlight usually 3 prongs use some 14 guage wire and hook to prongs to head light and run the other end of the wires where efi fuse goes turn key on the headlight will light up as long as there is a short , u can then start wiggle wiring or unplugging engine sensors till headlight goes out when it goes out you have found the short

Posted on Dec 27, 2008

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