100 Series Plug-in Tuning Modules

GrahamR

New Member
I am in uk
Jun 4, 2019
46
15
8
Bristol, UK
Garage
Hi Guys,

I had a quick search on various threads in relevant forums but couldn't really find a great deal of info on plug in boxes for the 1HD-FTE.

I'm looking at a custom 3" SS exhaust and possibly Allisport intercooler, if SWAMBO/purse-string holder can be convinced...! Not keen on pushing anything too far or delving into big turbos, AT valve bodies etc, just increasing efficiency and compensating for some extra weight once a few expedition goodies are in place. Has anyone got experience of boost control on the 1HD-FTE?

I've cleared out the EGR and all its piping and blanked it. May fit a catch can too. I've removed the intake manifold and swirl flaps for a decrudding (I'm being VERY careful with preventing chunky oily carbon bits getting into the cylinders!). Does anyone know if the flap module is only fitted to the early engines or throughout?

I'm looking for feedback from 100 series owners who have experience of the brands available in the UK, below is a little list of what I've found available, recent prices and performance claims. I guess the Rolls-Royce box would be the Steinbauer but I'm keen to see if anyone has had decent gains with the more cost-effective boxes?

If anyone knows of other providers, ones to avoid at all costs, specials etc please let me know...!

Kind Regards,

G

upload_2020-1-24_12-18-53.png
 

IvanD

Active Member
I am in bulgaria
Dec 11, 2018
52
22
8
Keep in mind that the stock ECU cuts off fuel during gear shifts. Any aftermarket modchip that doesn't respect that will shorten auto's life and negatively affect shifting.

My choice would be the Unichip - it's crazy popular & successful in Australia.
 

GrahamR

New Member
I am in uk
Jun 4, 2019
46
15
8
Bristol, UK
Garage
Good info Ivan, that's interesting about fuel cutoff... something I can fire at a manufacturer to check.

Thanks for the vote for Unichip, Redline in Essex were quick to get back to me over Christmas.
 

uHu

Well-Known Member
Supporter
I am in norway
Mar 7, 2010
2,021
390
83
Oslo, Norway
... I've removed the intake manifold and swirl flaps for a decrudding (I'm being VERY careful with preventing chunky oily carbon bits getting into the cylinders!). Does anyone know if the flap module is only fitted to the early engines or throughout?....
The flaps are only on the later engines, those with egr cooler and 5-speed auto, and only in Europe (or maybe that should be "not fitted in OZ and general countries version").
 
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GrahamR

New Member
I am in uk
Jun 4, 2019
46
15
8
Bristol, UK
Garage
The flaps are only on the later engines, those with egr cooler and 5-speed auto, and only in Europe (or maybe that should be "not fitted in OZ and general countries version").
Hmmm... Curious... I must have an on the cusp 4AT with some later engine bits...! May 2002... Got the EGR cooler and the flaps... But the 4 speed box... Also has the 17201-17050 turbo...

Do you happen to know roughly what the flaps are there to do...? Swirl...? Low speed influence...? High speed influence...? Emissions...? Performance? Stability?

Were there any other major engine bay differences between early/late models?

Cheers,

G
 

uHu

Well-Known Member
Supporter
I am in norway
Mar 7, 2010
2,021
390
83
Oslo, Norway
Correction: The swirl flaps (and the EGR cooler) came before the other engine changes, possible in Aug 2001. It's just that I can't remember seeing them on any 4-speed.

The flaps cut off one intake valve on each cylinder, thereby increasing the flow speed and improves mix/combustion efficiency at low power. They open when you open the throttle more. In the parts list they are called "Valve Assy, Intake Air Control". Also the injectors and opening pressures changed.

Then, in Aug 2002, came the 5-speed A750F, change in ECU, IP-algorithms and valves; electric intake shutter, suction pipe to remove oil from IC.
 
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bandsnbrakes

New Member
I am in uk
Mar 17, 2014
41
17
8
Be very careful with the Steinbauer Ive had 2 of these units for different years (ecu) of 1hdfte vehicle 1999 and 2004. both had the power, but could not overcome the transient drivability issues (shuddering and tug back). Sent the chips back for firmware upgrade, investigated pumps and injectors. Allsorts neither were ever ever right. Company would not refund and really not all that interested. They are very expensive too.
In contrast Tunit advantage 3 works very well with these vehicles 1hdfte. Excellent support and they just work. I have fitted a few advantage 2 (no longer available) and had to tweek a few gain values for drivability, but honestly the advantage 3 just works straight out of the box. Only thing better than tunit would be unichip but these really need calibrating on rolling road. Unichip is a good product though. I would definitely stay away from Steinbauer for the 4.2 1hdfte the denso oem software does not like this product in my experience. Having said all this some of the steinbauer products on Mercedes I have tried have been very good. But that's common rail not EDC (a very different system) Speak to Mark at Tunit really helpful guy.
 

Tuoppi1712

New Member
I am in finland
May 17, 2020
2
0
1
Hi!
I own 2000 Toyota Land Cruiser HDJ 100 4.2 TD.
Have been searching for tuning box for a while (6 months) because here in Finland it is not possible to remap ECU(too old Cruiser apparently).
After long research there are 4 possibilities left:

DTUK(same as DTE systems)
DTE systems
Steinbauer(3 times more expensive than others)
Vector Tuning module for VP44 pump.

Now what I have learned from this forum is that those first 3 options do not work properly! And there are few more tuning boxes that are similar to DTE and DTUK boxes, which apparently have problems during gear changes.

How ever, I have been in contact with Vector Tuning,asking about VP44 tuning box. I reseived a fitting diagram which shows that their tuning box connects to the ECU,4 wires to the connectors that connect to ECU. Instead of connecting straight to magnetic valve of fuel pump like DTE and DTUK.

Is the Vector box right one for HDJ 100? Is it possible that it cuts off fuel during gear changes,due to the fact that it connects to the ECU?
I have sent mail to Ivan at Vector Tuning asking about the fuel cut off. He has been very very helpful answering all my questions so far.
Any other suqqestions about the tuning boxes? Or forget about it?!
 

Tuoppi1712

New Member
I am in finland
May 17, 2020
2
0
1
Hi!
This is screen capture from Vector:
"Tuning Powerbox Module VP44 is designed for diesel-powered vehicles where the working pressure of the fuel is achieved with the VP44 (Bosch) pump as well as the Denso pump. Specially designed for your vehicle, the Tuning Powerbox Module VP44 enables faster acceleration, higher engine power, more driving dynamics, and reduced fuel consumption depending on your driving mode For all this reasons, you'll get to enjoy driving so much more with the Tuning Powerbox Module VP44."
Can you please tell me the difference between Bosch and Denso pumps? For my novise eyes they look the same and chip manufactures seems to make no difference between them. It would be great to learn the difference.
 
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