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dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

https://www.ecutesting.com/product-catalog...eem500020/

15th Dec 2021 7:05pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2777

lf you fit a different ECU does it not need coding to your injectors before it will work properly, like on my Ford Transit Connect?

Or is it not an issue on the TD5

15th Dec 2021 9:06pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Yes you will have to code the ECU to your injectors. If you have not been able to get the codes from the old ECU then you will need to pop the rocker cover and read them off the injectors.

EDIT: and you will have to link to the alarm/immobiliser as well.

15th Dec 2021 9:22pm

NickMc

Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1624

lightning wrote:
So it needs a new engine management unit.

Anybody know where l can get one quickly? It's a late Defender TD5

Part no. NNN50020

Why?

I think it the blue underseat header is faulty C0294, I’d be interested to see if you wiggle it will it start!

Also check the white header joint bolted to the bulkhead as that controls everything you have missing.

16th Dec 2021 11:08pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2777

l tried all suggestions, check the earths, the inertia switch, live feeds, etc and it made no difference

The RAC guy spent an hour on it and got nowhere

The garage swapped the ECU for a known good one and it started instantly

So l guess it's the ECU. They do fail without warning.

17th Dec 2021 8:41am

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2777

So, it was the ECU

l took the ECU to a guy who specialises in Defenders, he had a look at it and found a faulty resistor on the PCB.

He replaced it and it's back in the Land Rover and working perfectly.

I thought that was pretty decent of him, as he could have sold me a replacement ECU.

He charged me £80 for the repair.

l bought an ECU off him anyway for £700, to keep as a spare, and he waived the £80 repair charge on mine.

So l've got a repaired ECU and a spare, the spare has been loaded with my injector codes and a remap, for £700

l paid nearly £400 for just a remap from
one of the big companies a few years ago.

17th Dec 2021 6:09pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5707

2006 Defender 110 Td5 USW Zermatt Silver

Great result in the end.

17th Dec 2021 6:34pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

good result with speeded turnaround around

17th Dec 2021 8:04pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Brilliant. Good result in the end

18th Dec 2021 1:09pm

Mike c

Member Since: 11 Aug 2017
Location: Maldon, Essex
Posts: 928

Glad you got it sorted 👍

As a TD5 owner too its good to know there are sensible options out there for this!

18th Dec 2021 1:48pm

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