blown EFI fuse
#1
blown EFI fuse
Hey guys. Last week I was driving my 92 4 cylinder 5 speed and it stalled at highway speed. I noticied that the EFI fuse was blown. I replaced it and the truck started and drove about 500 ft and blew again. I had problems with rough idle at start-up in cold weather. So I took a stab at the throttle position sensor. Now with the sensor plug in or not I blow fuses when the iginition is turned on. Any ideas would be helpful.
#3
Contributing Member
Two things to check...
First, I have a 3.0, so I'm not sure where your O2 sensor is, but find it & trace the wires & make sure they didn't fall on the hot exhaust & get chewed up. If so, get some butt-splices & heat shrink & resplice all the wires (3 on mine, one of which was coaxial). If that's not it, it's probably a bad fuel pump. Not sure where yours is, mine's in the fuel tank... I just fixed that problem, & it was the O2 wires.
First, I have a 3.0, so I'm not sure where your O2 sensor is, but find it & trace the wires & make sure they didn't fall on the hot exhaust & get chewed up. If so, get some butt-splices & heat shrink & resplice all the wires (3 on mine, one of which was coaxial). If that's not it, it's probably a bad fuel pump. Not sure where yours is, mine's in the fuel tank... I just fixed that problem, & it was the O2 wires.
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