I'm having problems with my 80 starting, it'll rotate but not turn over. I checked was going to replace the efi relay figuring that was the problem and bridge a 10 gauge wire in replace of the 12, but when I took a closer look I noticed that there was no wire connected to the silver relay, upon closer inspection I found a bosch 30amp relay under the fuse box with the wires from going to that, and there was a wire heading into the 15amp fuse that is marked EFI. My dad said he ahd teh problem of the truck not starting after it was hot, and this mechanic rewired the whole sytem. Is a good starting place is to start with replacing the fuse, then the wires? Also I'm not getting a spark either, is the EFI the brain behind the spark so to speak?
Thanks.
Thanks.