EFI fuse pop

[bluesupra]

Could someone help figure out why my efi fuse pop on my 89 supra turbo when the key is on?

[bgrieger]

You've likely got a short in the system, or you have something high draw wired into the efi circuit...more likely the first. More remote, the ecu has an internal short. Have fun...electrical fault chasing's a bitch!


Bob

[Jeeves]

Easy way to test where in the line it is, unplug all the harnesses from the ecu and turn the key on. It could be a multitude of things.

Though, when you turn the key on, the pump comes on (or should) you could have a short in the Fuel Pump relay/system

Here are threads on the forum you should have gone to for Supra questions like this:

1) Keep popping EFI fuse car won't start

2) EFI fuse ... blowing ... multiple times.

3) efi fuse keeps blowing... help...

4) !help Car Quit Running And Efi Fuse Keeps Blowing