Question about 2004 Toyota Corolla

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Efi fuse my efi fuse keep blowing at times

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  • Anonymous Mar 06, 2009

    the engine does not start

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  • Toyota Master
  • 61,203 Answers

This is caused by a damaged wire on the engine going to the different parts that are controlled by the EFI computer, look for places the harness may have rubbed through the wire insulation, it will be hard to find, but it will be there somewhere.

Posted on Oct 11, 2008

6 Suggested Answers

  • 16 Answers

SOURCE: EFI fuse Keeps Blowing

I had the same problem at one point. My issue was a bad grounding point from the battery to the chassis. I would say check all of your grounding points.

Posted on Nov 10, 2009

  • 6 Answers

SOURCE: keeps blowing 15a efi fuse 1991 toyota pickup 2.2 re

there's a short somewhere causing that amperage to go up

Posted on Dec 13, 2008

  • 1861 Answers

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.

Posted on Sep 15, 2008

Molson02536
  • 3854 Answers

SOURCE: fuel pump fuse blows

Check the fuel pump relay, i am not sure but i think there are two of them. Check the wire harness too, mice may have chewed in to the wires causing a shot in the system. 
Good luck and hope this helps.

Posted on May 09, 2009

  • 1 Answer

SOURCE: I own a 89 toyota toyopet truck. The EFI fuse

I had the same problem with my 1990 P/u. It turned out to be the O2 sensor touching the underside of my box shorting and blowing the EFI Fuse

Posted on Oct 26, 2009

  • 1244 Answers

SOURCE: EFI 15 amp fuse keeps blowing, any suggestions?

you either got a shorted wire to the injectors or a injector stuck! or shorted

Posted on Jan 18, 2010

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Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

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