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EFI fuse keeps blowing, please help

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Old May 17, 2021 | 06:43 AM
  #1  
Goesta's Avatar
Goesta
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Default EFI fuse keeps blowing, please help

Hi! I did a dumb thing and tried to jump start my car with 24 volts instead of 12, unintentionally.

I have removed the battery (for about 24 hours) and put another one in. I have checked all the fuses, the only blown one was the EFI fuse.

Now every time I turn the key to ignition, the EFI fuse blows. Have I broken something that the fuse is supposed to protect causing a short or something? o2 sensors or fuel pump maybe?

This is a 1994 LS400.
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Old May 17, 2021 | 02:50 PM
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paulo57509
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Originally Posted by Goesta
Hi! I did a dumb thing and tried to jump start my car with 24 volts instead of 12, unintentionally.

I have removed the battery (for about 24 hours) and put another one in. I have checked all the fuses, the only blown one was the EFI fuse.

Now every time I turn the key to ignition, the EFI fuse blows. Have I broken something that the fuse is supposed to protect causing a short or something? o2 sensors or fuel pump maybe?

This is a 1994 LS400.
By "ignition"...you mean ON or START position?


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Old May 18, 2021 | 06:46 AM
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Default On

I mean ON.
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Old May 25, 2021 | 06:28 PM
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Double voltage...ouch
Might have blown lots of modules/components.
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