newbie seeking wisdom

[KingBeeIII]

The '94 80 died in the middle of traffic Friday. What a to push off the road. It cranks but won't start. I found a blown 15 amp fuse, replace it, temporarily solving the problem. Three fuses later, it's obvious the fuse is just a symptom of a bigger problem. After researching the problem on this site, I'm leaning towards the fuel pump relay. Is there any other direction I should be looking towards before I throw some time and $ that way?

 

[Romer]

It would help if you told us which 15 amp fuse keeps blowing.

 

[KingBeeIII]

15 amp EFI

 

[Beowulf]

15 amp EFI

To properly isolate the problem you need to trace this circuit using the EWD. There are several things that could be blowing this fuse. One member had a shorted wire inside the fuel tank at the fuel pump. Another had a frayed wire at the O2 sensor so check where that harness goes close to the driveshaft.

Unfortunately, there is no silver bullet when you're having wiring problems.

-B-

 

[GXO]

How about low hanging fruit...like the EFI relay being bad?

 

[KingOfFools]

How about low hanging fruit...like the EFI relay being bad?

I' new to the 80s, but have worked on cars for the past 12 yrs and never seen a bad relay cause a fuse to blow. Not that it isn't possible, but not likely. Check the wiring harness that runs past the EGR pipe on the intake side of the motor towards the back. A usefull tool for diagnosing these problems is a 1156 parking light bulb, one wire into one side of the fuse holder and the other wire to the opposite side, if you have a short, the bulb will light. Plug that in and start wiggling wires. HTHs!

 

[Romer]

I was confused for a moment, but then realized one King was talking to another king! Thought for amoment he was telling himself how to fix it.

 

[landtank]

you have a short somewhere and I'd start with the fuel pump. Remove the access panel from the floor and take a look see in there.