Landcruiser Prado TDi Year 2000

Submitted: Friday, Jul 30, 2004 at 13:13
ThreadID: 15146 Views:1708 Replies:3 FollowUps:4
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I have a year 2000 Prado TDi. I believe that the subsequent model has the same engine, but with improved engine management system. Is there any way to update the programming to that of the new model?
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Reply By: Member - Captain (WA) - Friday, Jul 30, 2004 at 13:46

Friday, Jul 30, 2004 at 13:46
Buy a Dtronic chip!!!


AnswerID: 70408

Reply By: GO_OFFROAD - Friday, Jul 30, 2004 at 23:19

Friday, Jul 30, 2004 at 23:19
Are you saying you want your car to meet stricter euro emissions than your current ecu settings?

I would follow the dtronic advise, makes them much nicer to drive, easy to remove, and they get better cruise lt per 100km, but will use some more fuel, if you love using all that extra power 8-)
AnswerID: 70524

Reply By: Phil G - Saturday, Jul 31, 2004 at 00:59

Saturday, Jul 31, 2004 at 00:59
I think you'll find theres bugger all difference between the 90series and 120 series TD motors. The air intake is shorter on the 120, and thats about it. Be content that you have one of the best vehicles going around.

The Dtronic has pluses and minuses. The pluses are that it lays you back in your seat. Minuses are that you'll use more fuel.
AnswerID: 70535

Follow Up By: pemmanuel - Tuesday, Aug 03, 2004 at 15:35

Tuesday, Aug 03, 2004 at 15:35
Yes Phil, you may very well be right, and I really do not want to use more fuel with impending increases in fuel prices.
FollowupID: 331303

Follow Up By: GC - Monday, Aug 09, 2004 at 11:30

Monday, Aug 09, 2004 at 11:30
On the contrary Phil. You will find that with the improved low RPM torque, the fuel economy will improve in day to day driving. Certainly at cruise speeds where most of the driving time is spent, the fuel economy improvements can be quite marked. Flat out it will use more fuel, but marginally so.

As an example, on your recent Madigan line trip where you spent such a great deal of time at lowish RPM in low range, you would have seen a good 10% improvement in fuel economy with the Dtronic fitted. Might not sound like much but an extra jerry can's worth of improvement none the less.

Hope this helps clarify the fuel economy facts.


'97 HDJ80 - Melbourne Oz
'03 Prado
FollowupID: 332015

Follow Up By: Phil G - Monday, Aug 09, 2004 at 18:11

Monday, Aug 09, 2004 at 18:11
Hi George,

Madigan Line was 10 days of driving at 800-1000 rpm in first gear high. Not even using the turbo, and first gear has the power limiter operational. I naturally wonder why having a dtronic fitted would reduce the fuel used under those conditions? My expectations would be for no difference.

Also, why did the Dtronic-fitted Prados on your Simpson trip used more fuel than those without?

FollowupID: 332071

Follow Up By: GC - Monday, Aug 09, 2004 at 18:47

Monday, Aug 09, 2004 at 18:47
Timing Phil, timing. 800 RPM - 1500 RPM is a part of the RPM range that is retarded from the factory in order to pass the relevant emission regulations in parts of the world that have far more stringent requirements than Australia. The improvement in engine efficiency is startling in that part of the rev range. Don't confuse the dtronic with fuel only devices.

As for the difference in fuel economy in the Simpson, auto vs manual, though Darren spent most of his time on the governor ;-)

Dave's car is the one that surprised me. It returned remarkable economy given the load it was carrying and Dave's exhuberant driving style.

Hope this helps.

FollowupID: 332079

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