Gu Patrol

kayno,
it sounds like the same situation that friend had with his toyota which had a sub tank . if the vehicle has not had the tanks used regularly ie swapping from main tank and sub tank and using same ,the solynoid (spelling who cares) could stick probably because lack of use of the 2nd tank. have a look at the conections .

hope i have been some help


lewjack1

Read through the threads and you will find this is common. The answer is to have an earth wire from the body to the chassis. Something to do with the earth getting to the pump via the body mounts. I had the same problem, installed an earth and never seen that problem again!

My earth wire is basically a length of wire with two eye type fittings crimped on the ends. One is placed under a nut under the bonnet and the other under a nut just behind the bull bar.

About $2 worth of materials.

Every time a GU patrol is started the sub tank pump transfers a small amount of fuel to the main tank so if you had the sub with some fuel in it most of the time it would not be caused through lack of use. I would try the earth.

Hi Kayno,

Here's where I run the extra earth. LHS chassis rail to body, below front door.
Regards,
Hugh
!MPG:4!

Hi Kayno, after I fitted a long range fuel tank to our patrol ute had same problem, it also happens now IF when i fill sub tank fuel goes down the breather pipe.
After a long and meaningful 30 second discussion with Nissan I was informed to disconnect batter for about 1 minute and reconnect it then resets the so called computer..... guess what it works ;-)
... Ric

Kayno,

I have had similar problems with mine over time, since adding the accessories. I had to "re earth" the electrical system by connecting another earth strap. The dealer who put in the extra earth strapping is going to re do the stapping at the next service.
However in the meantime (I've seen it done twice) all they do is reset the Sub Tank Module. If you reach in behind the console (below the radio) from the front passenger side, between the air con outlet and the centre console you will find a small white plastic box marked "diesel". Carefully pull it out, disconnect for 30 secs, re connect and the light should go off.
Primarily it must be an earthing problem you are experiencing.

Let us know how you go.

Mick

Had this problem recently. Make sure you have a "good" earth, engine, chassis and body. It will solve a lot of other problems too. Use a reasonably heavy cable.
Cheers