Member Since: 04 May 2010
Location: Hants
Posts: 485
So, out of academic interest only you understand...
If you keep a second ECU with your original set up on, is there no other historic info recorded onto this particular chip that records stuff like milage, last service, distance to next service etc? In other words, nothing to identify that this ECU chip has not been in the car all the time? If there isn't, where is this data held then?
And, thinking it through further, I would have thought that the ECU would have a unique reference that is held against the car build data held by LR.
Curious as I really don't know where they tuck all this stuff.
3rd Oct 2011 11:12 pm
Japseroony
Member Since: 11 Feb 2008
Location: North East
Posts: 792
The ECU does not record anything nor does it keep any information in it other than that to run the vehicle. It does however talk to the other ECUs on the vehicle.
I think you will find that the way the re-map is done is by cloning your ECU and then mapping the new one so that if you ever have the need to go to the dealers you can put your original ECU back on that has all the stickers/decals etc etc on it
Have a look at this for info on what the new 2012MY can do tuned by Pete Bell of BAS;
http://www.lro.com/news.php?page=1&sid=1021"UNDERSTEER" ---is when you hit the fence with the front of the car.
"OVERSTEER" ------is when you hit the fence with the rear of the car.
"HORSEPOWER" -is how fast you hit the fence.
"TORQUE" ------------is how far you take the fence with you.
5th Oct 2011 9:24 am
t7mbo
Member Since: 19 Apr 2007
Location: West Midlands
Posts: 242
how long does it take to swap over the ECU ? Is it a straightforward job?
10th Oct 2011 3:22 pm
Japseroony
Member Since: 11 Feb 2008
Location: North East
Posts: 792
Now that Pete is back I have asked him to post a reply but if you know what you are doing probably about 15mins to change the ECU "UNDERSTEER" ---is when you hit the fence with the front of the car.
"OVERSTEER" ------is when you hit the fence with the rear of the car.
"HORSEPOWER" -is how fast you hit the fence.
"TORQUE" ------------is how far you take the fence with you.
10th Oct 2011 5:16 pm
Ent
Member Since: 12 Oct 2007
Location: In the cack
Posts: 6485
t7mbo wrote:
how long does it take to swap over the ECU ? Is it a straightforward job?
Very easy, you will need an 8mm and 10mm socket. Take the battery out and the ECU is mounted on the bulkhead directly in front of you, take off the four nuts and two top cable connectors from thevECU and your done.Club Exped trailer
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10th Oct 2011 5:52 pm
essex4x4
Member Since: 21 Apr 2010
Location: Dunmow, Essex
Posts: 184
does anyone know when you will be actually able to remap it through diagnostics?2011 D4 SDV6 Auto Commercial
11th Oct 2011 6:08 pm
Japseroony
Member Since: 11 Feb 2008
Location: North East
Posts: 792
From what I understand your talking at least 12 months to be able to tune one through the diagnostics ports etc "UNDERSTEER" ---is when you hit the fence with the front of the car.
"OVERSTEER" ------is when you hit the fence with the rear of the car.
"HORSEPOWER" -is how fast you hit the fence.
"TORQUE" ------------is how far you take the fence with you.
Last edited by Japseroony on 11th Oct 2011 7:10 pm. Edited 1 time in total
11th Oct 2011 6:58 pm
D4JWW
Member Since: 20 Oct 2009
Location: London, UK
Posts: 1318
Essex you finally got your D4, pics ? needing more power allready, what you towning?A few mods... and keeping it all running...Faultmate MSV2
MY09EGR's blanked Thanks Bellautos, BAS
11th Oct 2011 7:07 pm
bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
essex4x4 wrote:
does anyone know when you will be actually able to remap it through diagnostics?
It can be done now and i have been able to for arround 8 months but at the moment its not a reliable enough option for you or your car. More work is needed on the tuning protection to make it 100% reliable.
Pete
11th Oct 2011 8:15 pm
bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
RichardB wrote:
So, out of academic interest only you understand...
If you keep a second ECU with your original set up on, is there no other historic info recorded onto this particular chip that records stuff like milage, last service, distance to next service etc? In other words, nothing to identify that this ECU chip has not been in the car all the time? If there isn't, where is this data held then?
And, thinking it through further, I would have thought that the ECU would have a unique reference that is held against the car build data held by LR.
Curious as I really don't know where they tuck all this stuff.
The milage and some other bits i need not mention is stored in the instrument cluster and the gearbox control module.
The unique ECU reference number and info the car needs to be "seen as correct" is cloned allong with the rest of the cars maping info onto a second ecu if this is the remap option chosen.
If a second ecu is not chosen and most dont then the original is tuned and all info references are as they should be anyway.
Its slightly better now for people buying USED D4s as they could have been tuned before they owned it and its still being sold with a dealer warranty So who in warranty can proveto say its the second owner who has actually made tuning to the car if its had previous owners from new ?
Pete
11th Oct 2011 8:19 pm
t7mbo
Member Since: 19 Apr 2007
Location: West Midlands
Posts: 242
So has anybody on here actually had a remap done by Pete on their D4? And if so, where are the improvements? ie is the improvement low down in the rev range, or is it all at the top end?
12th Oct 2011 4:47 pm
Calcul@tor
Member Since: 08 Mar 2006
Location: Middle England!
Posts: 810
bellautos wrote:
More work is needed on the tuning protection to make it 100% reliable.
Hi Pete
Can you explain that a bit more? I was going to try to guess what you mean, but easier to let you explain, rather than me make several guesses - probably all wrong!D4 XS MY12 Galway
12th Oct 2011 5:54 pm
Ent
Member Since: 12 Oct 2007
Location: In the cack
Posts: 6485
t7mbo wrote:
So has anybody on here actually had a remap done by Pete on their D4? And if so, where are the improvements? ie is the improvement low down in the rev range, or is it all at the top end?
Ent wrote:
Mickey
Contact Pete Bell at Bell Auto Services(site sponsor), he will give you all the info you need on the D4 remap. He is on holiday at the moment but will be back later on this week. I can recommend it
Lee
It is improved from tick over through to the big numbers. Not noticed any difference whatsoever with mpg during normal day to day driving but it will drop if you drive everywhere using the extra performance. Had a French Landrover journalist in mine after the Pete Bell treatment and he was very impressed.Club Exped trailer
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would that be the French conetionHome of RLD Hidden winch mounts Spare wheel Locks Trailer Body Fabrication [email protected] D3/4 sump plates MY 14 sump plates and the Discovery Sport wheel protectors Discovery 5 wheel locks
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12th Oct 2011 6:32 pm
bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
Calcul@tor wrote:
bellautos wrote:
More work is needed on the tuning protection to make it 100% reliable.
Hi Pete
Can you explain that a bit more? I was going to try to guess what you mean, but easier to let you explain, rather than me make several guesses - probably all wrong!
Im not sure what else to say without a lecture on programming protocalls checksums and chip protections which i dont want to get into on a public forum because of compertition and LandRover . Ill say basiclly that at the moment if an OBD programming attempt were to fail badly somehow because of a glitch in any of the above the ecus data may become very hard to reconstruct.
However with a bench reads its 100% of the ecu content, so after a bench read is done we have a 100% back up of it and its much safer for you as the car owner to have a perfect backup. It of course lets us make cloned ecus as well if we so wish
Here is a link to a PDF for the chip in inside the ecu ftp://ftp.efo.ru/pub/infineon/TC179_5Fds_5Fv03.pdf The chips internal rom has on the D4 tuning protection V6 on it, we then instead read and write the chip directly from the pcb in "Via the Back Door" to bypass some of the security protection available to landrover which they cant stop .
Page 35-36 gives you an idea of the OBD protection available to landrover, and mentions "Trojan Horse" software EG tuners software lol.
Pete
Last edited by bellautos on 12th Oct 2011 10:20 pm. Edited 1 time in total
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? needing more power allready, what you towning?
So who in warranty can proveto say its the second owner who has actually made tuning to the car if its had previous owners from new ?
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