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Treebeard



Member Since: 27 Jun 2012
Location: Forest of Dean
Posts: 40
United Kingdom 2005 Defender 110 Td5 CSW Chawton White
Newer ECU for early TD5 Defender
Hello all,
The only time I have ever been let down by my 1999 Defender TD5 is when the ECU packed up. The ECU part number is MSB101170 and the replacement is of the same part number.
I would like to get a spare ECU, preferably one that isn’t so old. I believe that this would need to be one of the following part numbers: NNN000120 or NNN500250 (what about NNN500020?).
As far as I can tell, I would need to put the injector codes in (easy), and write a fuel map to the ECU (svlne007-svtnp005.map for NNN000120 or svlne007-svtnp006.map for NNN500020. No idea for N500250). I have a nanocom but have never tried this.
Have I got this right? Or shall I hang on until I can find another MSB101170?
Looking forward to your replies!

PS - good forum - lots of useful info!
PPS - EGR bypassed, in case it makes any difference
Post #166530 5th Sep 2012 3:00pm
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me@td5.org



Member Since: 16 Jan 2011
Location: Warwick
Posts: 856
2000 Defender 90 Td5 HT Epsom Green
Re: Newer ECU for early TD5 Defender
Treebeard wrote:
Hello all,
The only time I have ever been let down by my 1999 Defender TD5 is when the ECU packed up. The ECU part number is MSB101170 and the replacement is of the same part number.
I would like to get a spare ECU, preferably one that isn’t so old. I believe that this would need to be one of the following part numbers: NNN000120 or NNN500250 (what about NNN500020?).
As far as I can tell, I would need to put the injector codes in (easy), and write a fuel map to the ECU (svlne007-svtnp005.map for NNN000120 or svlne007-svtnp006.map for NNN500020. No idea for N500250). I have a nanocom but have never tried this.
Have I got this right? Or shall I hang on until I can find another MSB101170?
Looking forward to your replies!

PS - good forum - lots of useful info!
PPS - EGR bypassed, in case it makes any difference


I'm told it can be made to work but Ian from IRB has always said to me it is better to use the MSB. I've never asked why but if he says so it's usually right!

Why would tuners go through the hassle of desoldering chips and putting sockets in these if it was easier to use an NNN flash-able unit?
Post #166541 5th Sep 2012 3:49pm
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wslr



Member Since: 18 Jul 2010
Location: Wellington, Somerset
Posts: 581
United Kingdom 
It's more to do with cost I expect. Even second hand EU3 ECU's go for strong money.

Discovery Td5 ECU's differ from the Defender ones as well, so you need to be careful.
Post #166587 5th Sep 2012 7:29pm
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bell-auto-services



Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2233
United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
The following software should be programed into the ecu for a older 1999 car originally fitted with a 171 ecu.

NNN000120=

STHLE 022 STTLP 009 European Defender No Aircon
STHLE 022 STTLP 009 European Defender With Aircon

NNN500020=

STHLE 022 STTLP 010 European Defender No Aircon
STHLE 022 STTLP 010 European Defender With Aircon

The NNN500250 is for a discovery. SVLNE007 are for EU3 defenders not EU2.

You can fit MSB101170, MSB101170, MSB00080, MSB000360

Pete
Post #166618 5th Sep 2012 8:40pm
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Treebeard



Member Since: 27 Jun 2012
Location: Forest of Dean
Posts: 40
United Kingdom 2005 Defender 110 Td5 CSW Chawton White
Many thanks for your replies.
In the response from Pete, MSB101170 was listed twice - did you mean MSB101171?
I'll have another trawl on the nanocom website to see if I can find the STHLE fuel maps.
Do you believe that the MSB ECUs are getting a bit long in the tooth and therefore unreliable? If not, then I am perfectly happy to buy one instead of a newer item, except that they don't seem so easy to find.

I suppose that the alternative is to repair the old one that still have - is this an economical way forward?
Post #166685 6th Sep 2012 11:54am
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me@td5.org



Member Since: 16 Jan 2011
Location: Warwick
Posts: 856
2000 Defender 90 Td5 HT Epsom Green
bell-auto-services wrote:
The following software should be programed into the ecu for a older 1999 car originally fitted with a 171 ecu.

NNN000120=

STHLE 022 STTLP 009 European Defender No Aircon
STHLE 022 STTLP 009 European Defender With Aircon

NNN500020=

STHLE 022 STTLP 010 European Defender No Aircon
STHLE 022 STTLP 010 European Defender With Aircon

The NNN500250 is for a discovery. SVLNE007 are for EU3 defenders not EU2.

You can fit MSB101170, MSB101170, MSB00080, MSB000360

Pete


Great to know, does that mean that you can use some of the other functions from the NNN ECU like cruise control?
Post #166741 6th Sep 2012 4:14pm
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T1G UP



Member Since: 08 Dec 2009
Location: Bath
Posts: 3101
England 2011 Defender 110 Puma 2.4 XS CSW Orkney Grey
i believe you can
Post #166750 6th Sep 2012 4:34pm
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