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Old 29-03-2005   #1
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Thumbs up Doblo JTD Tuning Chips

I'm in the process of joining the Doblo club, currently looking at a JTD Dynamic. Was looking on Ebay, as to bits availability, and found loads of tuning chips for JTD's offering improvements from 101ps to 125ps, all for between 79 and 99 euros. Seems pretty cheap, but has anyone tried them. My German's not very good, but they seem to be TuV approved. Any comments?
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Old 29-03-2005   #2
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Re: Doblo JTD Tuning Chips

Why not give Alfanige a try at Angel Tuning - his link is at the top of the page.

I know he does the Ulysse and Stilo JTDs, amongst others [both my cars are done ] so would imagine the Doblo a go-er.

Plus his tuning is all software based, no hardware mods needed
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Old 29-03-2005   #3
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Re: Doblo JTD Tuning Chips

Quote Originally Posted by Stuart DemonD
Plus his tuning is all software based, no hardware mods needed
because they dodgy and tell lies
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Old 30-03-2005   #4
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Thumbs up Re: Doblo JTD Tuning Chips

I have heard lots of good things about Nige and Angel Tuning from the Bravo forum. Unfortunately I live in deepest Aberdeenshire, far away from Nige's usual haunts. It was the price difference that got me, see weblink

http://cgi.ebay.co.uk/ws/eBayISAPI.d...963187268&rd=1

99 euros (68) compared to Nige's prices. Any opinions?
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Old 30-03-2005   #5
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Re: Doblo JTD Tuning Chips

Find out which method they use to get the extra power.

If it's purely by increasing the injection pressure by opening the MPROP valve on the high pressure pump leave it well alone. The high pressure pump is the first part on the common rail system that is going to wear so no point making it work harder than it needs to.

If the extra power is through advancing the injection timing and increasing injection duration, your fuel system will last much longer although the engine will run a little smokier when you're ragging it This would be my recommendation every time.
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Old 02-04-2005   #6
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Re: Doblo JTD Tuning Chips

Thanks for the technical reply RSPilot. I've translated via Babelfish what the German Ebay offer claims as follows:-

"Owing to modern technology the diesel engine is today a trend-setting drive with many advantages opposite the petrol engine. By turbochargers and high performance fuel injection systems (e.g.: Common Rail) it has enormous power reserves, which tuner uses itself gladly too makes. Opposite many other boxes that has amh booster 2 tax module a substantial advantage: Most Tuningboxen in the trade is installed before the Diesel pump and to catch so the signal, which is given to the Diesel pump, off and continues to send another signal to the Diesel pump. Simplified the Diesel pump instructed more Diesel is expressed to inject and the injection pressure increase! Thereby an increased output is reached, however any harmony is missing and the turbochargers continues to run on the old calculated values. More badly still it is that many of these boxes change the values and the amount of filling and filler times in such a way also with partial load and full load that a damage is inevitably the result! More achievement at a high price! We know it all - the smoking Diesel box drivers, who pull a black cloud behind itself, so that one is forced to switch the nebula light on. The amh booster 2 "works" there exactly in the other direction. It interrupts not the signal of the controller, but sends data to the controller. Owing to the modern fuel injection system Common Rail we developed the possibility of getting over this plant directly access to the controller. The Commonrail plant is constantly controlled by the controller. The pressure, which prevails in the plant, is constantly sent to the controller. Here the amh booster 2, which is installed directly to the Commonrail plant, is used. This sends the data now directly to the controller. This constantly adapted to the respective driving conditions, the number of revolutions and the driven course. The controller increased to instruction amh boosters 2 the pressure in Commonrail injection and fits all values optimally on (load pressure, quantity, filler time etc..)! Thus the diesel engine gets further an optimal mixture - calculates from the controller! Apply further all parameters, which the vehicle manufacturer planned as maximum load of the engine - they are not gone around by the amh booster 2. The large Clou is that the driver can determine the desired achievement by adjusting at the provided potentiometer."

How does that lot tie in with your explanation. Diesel technology is pretty new to me.
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Old 03-04-2005   #7
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Re: Doblo JTD Tuning Chips

Basically it changes the data being sent to the ECU so the EMP uses the wrong set of data - that is why it only gains limited power. A remap changes the actual data that the EMP uses and doesnt try to fool anything.

These things are a bit like the 99p resistors you see on ebay (only its more than 1!) that you install on the air flow side to fool the ECU to think that the air is colder than it is and therefore attempt to run the car literally "on choke" - yes you get more power short term but at the cost of various aspects of your engine, then the ECU compensates for it anyway. (This is why the people buying these things actually get some good feedback - they work to start with!)

However if short term cost is your priority a remap cannot compete. 300 for a remap custom made to your requirements or 68 for a case of resistors to fool your EMP. However, how much did the car cost???

There are pro's to your box though. You can take it off yourself and sell it back on ebay like most people with cheap tuning boxes do!

If you would like any more information on remapping (or indeed cheap tuning boxes) please either view our website www.angeltuning.co.uk, drop us an email angelobdtuning@hotmail.com or give us a call 01926 614027

Oh and we do travel to Scotland occasionally dependant on demand.
Nige
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Old 03-04-2005   #8
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Re: Doblo JTD Tuning Chips

I don't think Alta Vista's babble fish works as well as the one on the Hitch Hikers Guide!

I didn't realise that some where fitted after the ECU - you learn something new every day! From what I can work out, they are increasing rail pressure, fuel quantity and injection timing (if this means filler time) and this is done the same way as the others - by dicking about with the information being sent to the ECU. I can tell you from first hand experience that the boxes do work very well - they give huge power increases and the power does not drop off in time ref above, however you need to understand that they are a compromise.

I've been running one (not Amh Booster) on an engine with an electronic rotary pump for a year now, however I needed to install a boost gauge to keep an eye on the cylinder pressures. The box was taking the engine way past it's design limits on full load. During normal driving the engine is much more responsive and the box works well but you need to conservative under full load. Would you know if your cylinder pressures were too high?

As I've said before, the biggest issue on comman rail fuel systems when tuning is increasing the common rail pressure. It's the easiest way to get a lot more power however life of the high pressure pump is greatly compromised.

Although Nige is slightly biased (can't blame him really ), for 300 I must admit it is a much better option as you'll know exactly what the engine is doing and you can instruct him to leave injection pressure alone (just in case he normally tweaks this too!). The DIY fit power boxes (especially the one with potentiometers like the amh booster) are no good for people who don't understand what the engine is doing.
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Last edited by RS Pilot; 03-04-2005 at 11:49. Reason: spelling!!
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Old 05-02-2013   #9
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Re: Doblo JTD Tuning Chips

i have used said magic box for a year now ....A. Power increase more torq faster more economical mid range scares boy racers if its cheap tack well its very good cheap Tack... just a thought ...
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Old 09-02-2013   #10
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Re: Doblo JTD Tuning Chips

Does anybody know where is the commonrail ramp electric plug where the tunning chip has to be connected on an 1.3 MJ Panorama? I can't find it so I suppose is under the air filter box that has to be removed. Is that correct?

I just bought a Tunningkit brand tunning box from Germany for 88 euros and I'd like to give it a try on my Dobbie - I expect some more relaxed ride and low mpg on long constant high speed motorway trips, and also why not some more push for takeovers, although the MJ is quite happy accelerating on country roads as it is for sure.
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Old 28-03-2013   #11
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Re: Doblo JTD Tuning Chips

I was thinking of trying a tuning box on my jtd multipla, could you please tell me the name of the tuning box that you bought, and does it have different settings on it ?
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Old 28-03-2013   #12
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Re: Doblo JTD Tuning Chips

Quote Originally Posted by dave View Post
because they dodgy and tell lies

Dodgy? Mmmmmmm. i owned Nigel first 156 2.4jtd reg number V308 GTV..
Had it for 4 years till 2008 and showing 120 plus thousand miles. use to see it
in the Area up to about 2010 and i believe it had passed the 130k mark.
there was nothing dodgy about the remap on that car it still passed its Smoke
test on the fast test system [under 150L/m. when i had it
could and did do 50 mpg if you didnt break speed limits doing long runs on A roads. averaged 47 to 49mpg every time we went Italy on 3k round trips and i
certainly didnt drive that slow.. Dodgy? she ran to a real 136mph gps reading
a couple of times bearing in mind it had 30 to 1 gearing in top so was pulling
4500rpm..
"because they dodgy and tell lies" dosnt cut it,if you know something you should back it up not just come out with one liners with no substances!!!
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Old 28-03-2013   #13
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Re: Doblo JTD Tuning Chips

Quote Originally Posted by ban1111 View Post
"because they dodgy and tell lies" dosnt cut it,if you know something you should back it up not just come out with one liners with no substances!!!
use search !!!! i'm not going back over 8 year old bolloks again
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Old 28-03-2013   #14
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Re: Doblo JTD Tuning Chips

sorry didn't realise how old the original posting was,but from the tone of your response,thanks but it tells me I don't need to waste my time and do a search.!not like
i would learn anything useful
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Old 28-03-2013   #15
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Re: Doblo JTD Tuning Chips

oh you would learn lots, you maybe ok with one of their own cars though they would have paid or blagged people who know what they are doing to put it right.
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