EFI fuse

Joined
Apr 14, 2006
Messages
228
Location
Tulsa, OK
Can someone please tell me why I am blowing the 15A EFI fuse every 200 miles or so?

The truck will just die right in the middle of the road... I get out, pop in a new fuse, and it starts right up.

Whats the deal ?





97 LX450 - completely stock
 
Joined
Aug 22, 2006
Messages
246
A few things to narrow it down: Have you had any fuel related troubles before this, does the truck idle funny sometimes, do you throw the CEL? The things on the EFI circuit are: The Engine ECU:eek:, Fuel pump relay, resistor, and sender, Oxygen sensors, Mass airflow sensor, A few VSVs and the EFI main fuse. If I were you, I would replace the O2 sensors and EFI main before checking anything else.
 
Joined
Apr 14, 2006
Messages
228
Location
Tulsa, OK
The truck stranded me again tonight...

I don't even know what to actually "check" because everything seems to be working fine. This is an intermittent problem that occurs at random. The Lexus mechanic had the truck for 2 weeks and drove it everywhere, the fuse never blew while he was driving it.

Is it safe to use a 25 fuse instead of the 15 ?
 

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