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Gingerbunny



Member Since: 01 Oct 2013
Location: Wirral
Posts: 5

United Kingdom 2000 Defender 90 Td5 PU Coniston Green
Td5 Starts, Runs and then cuts out.
Hi, I've got a 2000MY Td5 10P here which suddenly cut out on me while driving a few weeks ago. Since then it can be started and starts fine and revs beautifully, it can even be driven under load with no apparent loss of power, however after a period of time it cuts out and may or may not restart.

If I can get it to restart it runs for less time after each subsequent restart. Once it's died it seems that if I don't try to restart it immediately but instead leave it for 24 hours it will happily restart.

I've had a local garage look at it and it was coming up with 1-5 Injector faults and Topside switch fault which the garage thinks is down to a knackered ECU.

I've also heard it could be the Crankshaft Position Sensor, and another one was copper washer failure under the injectors.

Just wondering if anyone here has any advice.

Cheers, Luke.
Post #1018133 12th Dec 2023 9:58am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5692

2006 Defender 110 Td5 USW Zermatt Silver
Run the priming process on pump. How does pump sound?

Any of the relays under seat getting hot? Burnt terminals?

Any vacuum when you take fuel cap off?
Post #1018136 12th Dec 2023 10:06am
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Mdm



Member Since: 11 Sep 2013
Location: Sunny Lancashire
Posts: 1599

United Kingdom 
the fault code read points to a poorly ecu but double check wiring first or try a spare ecu and you'll soon know if the issue disappears.

crank sensor faults are normally different to what you have described

same goes for worn out injector washers and your fuel level would be rising if they were that bad.
Post #1018155 12th Dec 2023 12:37pm
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Gingerbunny



Member Since: 01 Oct 2013
Location: Wirral
Posts: 5

United Kingdom 2000 Defender 90 Td5 PU Coniston Green
Thanks for the help so far, the fuel pump sounds fine, can't see any damage to relays etc and none seem hot. Unfortunately I don't have a spare ECU to try; I'm going to send this one off to be repaired see how I get on then. Cheers, Luke Thumbs Up [/quote]
Post #1018907 21st Dec 2023 12:12pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 896

United Kingdom 2004 Defender 90 Td5 CSW Santorini Black
I’m afraid topside fault means the ECU has met its end.

Your options are either to send your current ECU away for repair or source an entire replacement. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #1018908 21st Dec 2023 12:24pm
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Benny



Member Since: 03 Nov 2016
Location: Plymoth
Posts: 15

United Kingdom 1999 Defender 90 Td5 HT Rioja Red
Hi. I had ecu issue. Tamar electronics in Ivybridge. I highly recommend.
Post #1020174 5th Jan 2024 8:14am
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Chris86



Member Since: 15 Jul 2014
Location: South Yorks
Posts: 788

United Kingdom 2005 Defender 110 Td5 USW Chawton White
If it's TD5 ECU related and you need it testing/repairing- Dan at Storm Tuning would be my recommendation.

He's sorted a couple of problem ECUs for our customers, and usually has stock of replacements if it's either beyond repair, or the repair is not economical to do.

Regards

Chris
Post #1020273 5th Jan 2024 10:16pm
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