no B+ at main relay

[Mike]

I am not getting any power at my main relay, the red, and the red/white wires. I follow the harness back to the junction box on the passenger side fire wall, and I do get power on most of it, except for one post that has two wires coming off it. One of those wires goes off to the inside of the passenger frame rail. Any ideas on what I should check for next? I can crank the car, but I got no fuel pump, and pretty sure no spark.....

[dashboardmonkey]

Check your fusible link in the trunk.

[Mike]

If that was bad, I would not be getting any power at the junction box on the firewall.

[jlevie]

There are two hot sections of the junction block on the firewall. One has the large diameter wire from the battery, which then feeds the starter and everything else in the car other than the engine management system. The other hot section is fed from the battery via a small diameter wire and it supplies power to the engine management system. Included in that wire is a fusible link (more or less a flat spot on the wire near the battery). It sounds like you don't have power on that part of the junction block and the usual cause is a failed fusible link.

[Philo]

Did you check the fusible link? I'm all ears on this thread. I love no start issues (which i'm assuming this thread is about)

[Mike]

Kudos on the fusable link guys. pulled the trunk apart xmas eve, to find that wire just flat out cutoff, and missing, about 6in. before entering the passenger compartment. gotta love them freetwentyfives, eh? so, you think 30a fuse to start with jlevie? maybe get one from my picknpull...