what is the fuse for on my 85 ute that says ENG CONT ? its blown, and blows every 10amp fuse i put in.
if i put say a 15 or 20 the car wont turn off.
checked tech wiki and search with no luck

We don't have a 1985 owner's manual, which lists what the fuse is for.

Won't turn off ... have you recently changed alternators?

nar. just recently bought the car. its all a bit unknown.
l20b conversion

electronic dizzy

Sounds like it doesn't have a 1200 Fuse Box. Does it work OK if you leave that fuse out?

1985 1200 Fuse Box as far as I know looks like this, there is no ENG CONT fuse:

thats the fuse box. my def has eng cont according to the cover....
works fine without that fuse in. with fuse in 20amps+ it wont turn off. blows anything lower.

Can you post a picture of the fuse box cover?

I'm not really good with pics, but I have an 85 ute as well and under the IGN section on the fuse box cover one of the fuses is marked ENG CONT on the lid. It should run a 10 amp fuse and mine has got a 10 amp fuse in this spot.

The fuse has a brown wire coming out of it and when I look in the engine bay I see a 6-pin connector with 2 brown and 2 blue wires going to it. The connector plug looks identical to the one for the regulator box but only has 4 live pins in it. It is located next to the horn relay and pretty close to the regulator.

Now the problem is I have nothing plugged in to this Eng Cont connector plug as I am in the middle of a CA conversion and I can't remember where I would have placed the mystery box that plugs in to this connector.....but I have recently seen an engine bay photo of an 85 ute and it did have a small silver box (like a relay switch) located on the drivers side (RH) strut tower.

Maybe the small silver box in the engine bay is causing your problem.

P.S. if anyone has a wiring diagram for the late model utes I would love a copy as there are a couple of differences when compared to the earlier models.

ill have a look in the morning. tried posting a pic but didnt work
on my phone

Hmmm ... B310 has an "Engine Control" fuse ...

It is a Blue wire circuit that powers
* Auto choke
* Fuel-cut solenoid
* Automatic Transmission inhibitor switch
* Amplifier Speed Switch (on back of speedometer)
* Rev Switch