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Shuggy110



Member Since: 25 Mar 2018
Location: Perthshire
Posts: 58
Scotland 2001 Defender 110 Td5 USW Stornoway Grey
Disco 15p Td5 into 10p Defender
Morning

I've done some reading on here, but just wanted to check the logic please. I have a pre-2002 10p Td5 Defender with a tired engine. I have a donor automatic post-2002 15p Discovery. I intend to drop the Disco engine into the Defender.

I realise the 10p ECU will not work with the 15p engine, and that I need to buy a NNN000120 ECU for the 15p.

Is it as simple as:

Unplug the loom from the old 10p
Remove 10p engine
Fit 15p engine
Plug loom back in to the new 15p
Remove the MSBxxxxxx ECU
Replace it with the NNN000120 ECU
Re-programme the ECU with the correct injector codes
Run the fuel bleed cycle
Bob's your uncle?

TIA.
Post #712287 14th Jun 2018 6:30am
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diesel_jim



Member Since: 13 Oct 2008
Location: hiding
Posts: 6093
United Kingdom 2006 Defender 110 Td5 SW Epsom Green
I'm not sure about the NNN000120 ecu, but the NNN500020 is fully programmable for defender files. That's what I've used in the past.

Just trying to find a spare one can be difficult!

You may have to jiggle around with the fuel pipes/fuel cooler system to get the 15p engine to fit.
Post #712288 14th Jun 2018 6:43am
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Shuggy110



Member Since: 25 Mar 2018
Location: Perthshire
Posts: 58
Scotland 2001 Defender 110 Td5 USW Stornoway Grey
Thanks - I’ll do some digging on the fuel pipes issue.
Post #712289 14th Jun 2018 6:45am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881
England 2001 Defender 90 Td5 SW Epsom Green
Could you not ask one of the tuning companies to solder in a programmable chip? Maybe easier than sourcing another ecu etc.
Post #712305 14th Jun 2018 9:23am
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Shuggy110



Member Since: 25 Mar 2018
Location: Perthshire
Posts: 58
Scotland 2001 Defender 110 Td5 USW Stornoway Grey
Every day’s a school day! Didn’t realise you could do that. It certainly sounds easier. Any idea who to look at? I’ll do some googling on the way home. Thanks.
Post #712313 14th Jun 2018 10:49am
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MadTom



Member Since: 10 Sep 2013
Location: Olomouc
Posts: 625
Czech Republic 1999 Defender 130 Td5 HCPU Baltic Blue
There is a small difference between 10P and 15P engines - the temperature and pressure sensor in air box are different (different connector, more wires in 15P). The rest should be the same.
Also Defender engine is missing the wastegate modulator. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo Smile
Post #712319 14th Jun 2018 12:12pm
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Shuggy110



Member Since: 25 Mar 2018
Location: Perthshire
Posts: 58
Scotland 2001 Defender 110 Td5 USW Stornoway Grey
Thanks MadTom - what does that mean in installation terms? Swap over the sensors from 10p to 15p?
Post #712321 14th Jun 2018 12:23pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5850
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Is a simpler approach just to swap over the injectors in the the newer engine, use the old loom and plug in and keep the same ECU & use the same turbo or is there more to it than that? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #712377 14th Jun 2018 7:19pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881
England 2001 Defender 90 Td5 SW Epsom Green
I don't think it's just the injectors that are programmed differently in the 10p vs 15p ecu. I think the map is different. But I'm no expert.
Post #712384 14th Jun 2018 7:46pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5850
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Keeping the same 10p ECU and 10P injectors would be a start? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #712394 14th Jun 2018 8:48pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1763
United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
Can't put 10P injectors in a 15P head. Something to do with the fuel channel design being internal vs external and the pressures involved.
Post #712417 15th Jun 2018 12:48am
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MadTom



Member Since: 10 Sep 2013
Location: Olomouc
Posts: 625
Czech Republic 1999 Defender 130 Td5 HCPU Baltic Blue
It is not possible to use 10P Injectors in 15P engine, and opposite.
ECU - to test that engine runs, you can use any ECU, you need just to pair the IMO (learn security code with nanocom).
For proper use and run, use the right ECU with the right map and code injectors.
Sensor in filterbox - not just simple change - 15P sensor has different size = different hole to filter box, and different connector. Nothing hard to modify, just some work. For 15P engine you need 15P sensor. 10P sensor is just filterbox air pressure, 15P is also air temperature.
For proper work of engine (first step before any upgrades) you need proper sensor. Without it, engine will run, but with some limitations.
There is also another difference - 15P has different EGR valve - with exhaust gas cooler and 2 vacuum controlled flaps. And also some small differences in cooling water pipes - look into RAVE for details.
For future tuning (remap) 15P engine is better, because the software (maps) has more lines and columns and can be better upgraded. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo Smile
Post #712422 15th Jun 2018 6:26am
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VVS210



Member Since: 12 Nov 2016
Location: Hampshire
Posts: 953
United Kingdom 
Bone question but can you plug the 15p loom into the sensor in the air box if it is a 10p sensor? Reason I ask is that I replaced the airbox on mine with a second hand one just after I got it because one of the catches was broken & never even thought there might be a difference in sensors - plug fits no problems so I am hoping all is good!?
Post #712430 15th Jun 2018 8:32am
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Shuggy110



Member Since: 25 Mar 2018
Location: Perthshire
Posts: 58
Scotland 2001 Defender 110 Td5 USW Stornoway Grey
MadTom wrote:
Sensor in filterbox - not just simple change - 15P sensor has different size = different hole to filter box, and different connector. Nothing hard to modify, just some work. For 15P engine you need 15P sensor. 10P sensor is just filterbox air pressure, 15P is also air temperature.
For proper work of engine (first step before any upgrades) you need proper sensor. Without it, engine will run, but with some limitations.


Thanks MadTom - is the wiring already in the 10p loom for the 15p sensor? How do you physically connect the dual function sensor if you're changing from 10p to 15p?
Post #712434 15th Jun 2018 9:10am
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rciii



Member Since: 11 Apr 2019
Location: Aveiro
Posts: 1
Portugal 
Hi all,

I'm doing the same operation of swapping my 10p by a 15p on my Defender. About the Airfilter sensor, do I need also a new wiring loom?
Wat about the acelerator. It should be 3 way now, rigth? Do I need to change anything on the wiring loom here?

I don't have any EGR. I guess I can keep the original coolant pipes
About the fuel pipes, do I need to change anything?

Thanks in advance you for your help
Post #768160 11th Apr 2019 3:13pm
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