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The mkiv Supra Owners Club

Advice - Blowing a 30amp EFI fuse intermittently


Sheefa

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Hi all

 

Long story short, every now and then my car blows the 30amp EFI fuse. It doesn't happen whilst driving and has only happened a couple of times in 6 months but clearly something is causing it to short.

 

What would be the best things to check in chronological order please? Assume start with the fuelling system and maybe the tank pumps? Might check for Arcing around alternator area as heard that could be a problem.

 

Any advice appreciated.

 

Thanks

Greg

 

 

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Its clearly a short that'll blow a fuse of that relatively high amperage. Best look where the wires can get hot first and work from there. O2 sensor wire is a good place to start seeing thats up against the manifold and that's also a good place to short to.

 

PS - I have a used serviceable one if you need a quick replacement.

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