TD5 ECU Swapping? 110 '02 with 90 '00 - Defender Source
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  #1  
Old October 22nd, 2015, 10:57 AM
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Jeff
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Red face TD5 ECU Swapping? 110 '02 with 90 '00

I have a remapped/chipped ECU in a 2000 TD5 Defender 90 ECU.
Could this be swapped with a stock ECU in a 2002 TD5 Defender 110?
*I am aware there were some slight changes to the TD5 in the 2002 release.
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  #2  
Old October 22nd, 2015, 11:18 AM
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Robert Davis
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I have a friend with the software to program the TD5 ECU and he said that the injectors had to be mapped to the ECU.
If he is correct than am not so sure a direct swap would work.
From what he showed me the swap is not too hard, so you could try it.
If it works, but won't rev to high RPMs, then it will need to be remapped.
You might just get away with a direct swap.
Let us know how it goes.
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Old October 22nd, 2015, 12:05 PM
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Should work Just have to program the individual injector #s to the ecu
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Old October 22nd, 2015, 04:02 PM
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The guys at AULRO talk about doing it. I guess it's pretty common as the early MSB ECU cannot be re-flashed with a new map and the newer NNN ones can, or something like that.

EDIT: Actually, if your older defender's ECU is remapped, it might already have been replaced with a newer version, so it might be the same part number anyway.
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Old October 22nd, 2015, 08:08 PM
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As long as it is unlocked it should be fine. Otherwise, it will need to be synced to the fuel injectors and green box. The "NNN" serial number ecu is the one you want and not the one that predates 2002.
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Old October 22nd, 2015, 08:23 PM
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Quote:
Originally Posted by Ben01 View Post
As long as it is unlocked it should be fine. Otherwise, it will need to be synced to the fuel injectors and green box. The "NNN" serial number ecu is the one you want and not the one that predates 2002.
Correct.
A primer on this:
http://nanocom-diagnostics.com/downloads/1177665786.pdf
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Old October 22nd, 2015, 10:39 PM
Ben01
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The correct slang is "immo free" not unlocked...I couldn't remember. Be very careful if you have a non-NNN ecu that has been remapped as they had to be physically modded and it was not just a software mod... this was very easy to screw-up.

Symptoms of a bad mod on a pre-NNN ecu can mimic a dead battery. I would avoid a non-NNN ecu at all costs.
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  #8  
Old October 23rd, 2015, 12:44 AM
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Thanks for all the good info. "Non-NNN" ECU, is this determined by a specific year and previous? TD5 came out in 98, and then 2002 I believe had some changes. For this specific case it's a chipped 2000 TD5 swapping into a 2002 TD5. I will have to check the serials to confirm
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Old October 23rd, 2015, 01:03 AM
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The serial will have an NNN.
I wouldn't keep a "chipped" or remapped 2000 ecu if it is the non-NNN ecu (which would mean it is a non-original ecu). Additionally, I am sure the ecu is not unlocked so it would have to be synced with either the green box or the injectors depending on the map. If you remove the ecu and the as10 it would likely still need to be synced to the injectors but you can test it ...the truck will turn on but you will not be able to get over about 10 mph.

If you want to use a remapped ecu I would make sure you know what you are getting. The pre-NNN ecus do have some resale value and it would be a good idea to buy the NNN, have it remapped. I can recommend someone on pm if you are interested.
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  #10  
Old October 23rd, 2015, 06:49 AM
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You can swap them OK. for the later EU3 version there are different fuelling files to the earlier EU2 (although the nanocom file wizard has them all on it)


however, it won't start unless you synch the 10AS alarm unit with the ECU.


The engine will run with the incorrect injector codes, but it won't run to it's full efficiency... whether you'd actually feel it through seat of pants driving, I don't know.
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