Question about Turbo Timer for Nissan GU

Submitted: Saturday, May 20, 2006 at 22:18
ThreadID: 34079 Views:6847 Replies:10 FollowUps:7
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Have put in a Turbo timer for my Nissan 1999 GU, And Im having trouble with my Sub Tank as it has been made inactive.
Have taken it to an auto eleco and i think i know more about it than what he does. And thats stuff all. Can anyone offer any adivise on what to do or should i just ripp the bloody think out...... Cheers
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Reply By: Shaker - Saturday, May 20, 2006 at 22:35

Saturday, May 20, 2006 at 22:35
Be careful if you walk away from your vehicle with the engine running, a friend of mine got booked for it!
AnswerID: 173712

Follow Up By: Member - andrew B (Kununurra) - Saturday, May 20, 2006 at 23:24

Saturday, May 20, 2006 at 23:24
Sometimes you have to wonder the intelligence of such a law....heaven forbid an unattended running engine. I wonder what the law really is. I think it's illegal to leave your keys in the ignition, but with the turbo timer they are removed. Maybe all generators in the country need an operator sitting next to them. Law inforcement resources are always utilised in the best interests of the community..

sorry for the sarcasm

FollowupID: 429694

Follow Up By: Shaker - Saturday, May 20, 2006 at 23:45

Saturday, May 20, 2006 at 23:45
According to my friend's fine, the law is that you can't leave a vehicle unattended whilst it is running.
FollowupID: 429695

Follow Up By: Member - Doug T (QLD) - Sunday, May 21, 2006 at 07:21

Sunday, May 21, 2006 at 07:21
andrew B

Shaker is correct in his statement, stupid we all know, but really if everyone stopped speeding, running red lights, or all other infringments sure as hell they would invent a knew one to get revenue,
as for the timer problem I once put a BOGARD in a Rocky I owned and it came ready wired with plugs each side so all i had to do was separate a connector and insert the loom between and it was no worries, this loom was specially made for Rocky's so i thought maybe Bogard do other brands as they would ,
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FollowupID: 429710

Reply By: dan26aus - Saturday, May 20, 2006 at 23:41

Saturday, May 20, 2006 at 23:41
Hi there Funbar, I had the exact problem 7 months ago with a turbo timer that i bought from autobarn, and it tripped out my sub tank as well. The bad new is that there is only 1 turbo timer on the market that i could find that is suitable, which is an " ARB ". It is a plug in that acts as a sort of double adaptor for the wiring harness on the steering column. I think from memory it cost me about $150 or $160. But i guaratee it will definately work. I just about pulled my hair out over it, and when i ripped a fart up autobarn for selling it to me and blowing $$$ with an auto lecky they not only refunded my for their crap timer, they even installed the ARB ( which i had to purchase from somewhere else ), for me for free !!!

So there is light at the end of the tunnel for you, but be sure that they get the right one as there is 2 types of timers that they supply........ 1 with sub-tank, and the other without !!!!

Hope it helps you out

AnswerID: 173722

Follow Up By: dan26aus - Saturday, May 20, 2006 at 23:52

Saturday, May 20, 2006 at 23:52
Funbar, i just had a re-think about the price, and i have a feeling that it might have even cost me a little over $200....Sorry that i can't remember the exact price...

FollowupID: 429699

Follow Up By: Voxson (Adelaide) - Sunday, May 21, 2006 at 00:10

Sunday, May 21, 2006 at 00:10
They are $200 for the ARB version which is what i would buy if i had the chance again because they are increments of ½minutes...and they are straight forward to fit because the wiring harness is already there...

FollowupID: 429703

Reply By: davidta - Sunday, May 21, 2006 at 07:54

Sunday, May 21, 2006 at 07:54
Mate of mine had this happen to his 2003 GU with an ARB timer.
Turned out, all we had to do was reset the ECU - disconnect battery for 3 minutes (I think it's 3), reconnect & all was good.

I have a Bogaard connected to my 2002 GU & had no such drama.

AnswerID: 173739

Reply By: Member - Ian H (NSW) - Sunday, May 21, 2006 at 09:07

Sunday, May 21, 2006 at 09:07
I thought Nissan had already fitted a turbo timer to those early GU patrols. It activates permenantly at about 70000 to 100000 kms.
AnswerID: 173745

Reply By: djpatrol - Sunday, May 21, 2006 at 09:52

Sunday, May 21, 2006 at 09:52
I went to have one fitted to my 4.2td -99 and the diesel specialist in Mackay told me that it was a waste of money as that model cooled down really quickly so I dident bother that was 6 years ago.
AnswerID: 173754

Follow Up By: Battlecat - Sunday, May 21, 2006 at 14:07

Sunday, May 21, 2006 at 14:07
Maybe I have been told the wrong info but a turbo timer is used to slow the turbine down. Eg if you are giving it berries and the engines is doing 3,000rpm then the turbo is spinning at something like 12,000rpm. Turning off the engine too soon after this robbs the turbo of its oil while it is still spinning bloody fast. Needless to say this roots the bearings etc.

Also my Dad had the same trouble with his Patrol and disconnecting the batt as above should do the job if ya get stuck.
FollowupID: 429741

Reply By: P.G. (Tas) - Sunday, May 21, 2006 at 12:04

Sunday, May 21, 2006 at 12:04
Firstly, davidta has hit the nail on the head, disconnect the battery as he described. If that fails it is likely your sparky spiked the onboard computer in fitting and requires a technician to reload it again.

This was the experience of a work colleague with a 99 GU, 2.8td.

I bought a Turbo Timer from Repco for my GU III 3.0 and had the local sparky wire it in for me, no probs. Cost me about $210 fitted. Found out later it is the same unit ARB uses, except it wasn't prewired with the double adaptor plug setup. It incorporates a digital voltmeter and the timer is adjustable from 1 second to 99 minutes 59 seconds (Why that long I'll never know).

Hope this helps,

AnswerID: 173769

Reply By: madCrow - Sunday, May 21, 2006 at 23:18

Sunday, May 21, 2006 at 23:18
Hi Fubar
The Old Turbo Timer Timed Turbo Cool Down trick hey!
Cool though it doesn't always work, damn! Believe it or not I was considering one for my rig but then I met some one, let's call him "Dave". His rig was the same as mine a Patrol Gu 4.2TD & guess what, he had fitted a turbo timer, with the same results, or rather lack of use of his sub, yes he used the cut the battery power off trick often, but he tired of it.
His recommendation to me re: the timer, was save your money.
When I have if I have been out on the H'way or F'way, downing long miles/K's I never turn the motor of when I get to the destination, I let it idle for a few minutes to allow the turbo in the engine to cool.
This could be considerred a "bit thick" in options, but hey the 4.2TD might not be the most specky in modern motors, it's winning points to me is that it just chugs along happily!
So save your money & mental duress let your motor cool with a manual idle.

madCrow, Enjoy today for we know not clearly what tommorrow brings!
AnswerID: 173879

Reply By: Chaz - Monday, May 22, 2006 at 06:51

Monday, May 22, 2006 at 06:51
When I bought my Boggard Timer, it had "Nissan GU with Sub Tank" written on the box, so maybe there is a different model, although as far as I know all Patrols in Australia have sub tanks.
AnswerID: 173893

Reply By: Member - Coyote (SA) - Monday, May 22, 2006 at 08:49

Monday, May 22, 2006 at 08:49
I had a 99 2.8 TD with one fitted.... I cant remeber what brand it was but it worked just fine and had no impact on the Sub tank.. so sorry I cant help you with the brand but at least you can keep your hopes up..
AnswerID: 173910

Reply By: Grungle - Monday, May 22, 2006 at 09:45

Monday, May 22, 2006 at 09:45
Hi Vince,

The problem with most turbo timers is that they are a 3 wire joby which when connected to a GU, supply juice to only one of the accessory lines when in countdown mode. The GU specific ARB timers actually have more wires to connect to other accessory lines so that standard operation of all circuits is maintained. The reason for this is because the sub tank ECU (cause it is a sort of computer that is seperate to other electronic diesel ECU's) has around 3 power supply lines going into it. There is a constant 12V line and 2 accessory lines. The problem is when a non GU specific turbo timer is fitted, only one of the 2 accessory lines is powered in countdown mode which sends the ECU into a spin and goes into fault mode. To reset this fault you disconnect battery for a few minutes. To fix the issue you need to power the other accessory wires via a ballast resistor or diode of some sort. You need to be careful though that the system doesn't keep powering itself because you introduced a loop of some sort.

I investigated this a couple of years ago but never really went much further about rectifying my problem. If you get hold of a Sub Tank block diagram and circuit, you will be able to see the issues at hand.

AnswerID: 173922

Follow Up By: FUBAR - Tuesday, May 23, 2006 at 21:31

Tuesday, May 23, 2006 at 21:31
Thanks everyone for your info.... had another auto look at it and he chucked in a couple of relays said to fool the computer and it seems to have done the trick...

Cheers everyone and safe driving FUBAR.........
FollowupID: 430386

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