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Paul_1978



Member Since: 08 Nov 2009
Location: South Yorkshire
Posts: 384

England 2004 Defender 90 Td5 CSW Zermatt Silver
Loss of Power
I seam to have a problem with my landy.

Symptoms are, loss of power when the second rev stage should kick in.
It has been intermitantly failing over the past few months, but after using the landy all day it seams to have failed properly now.

I have removed the plug from the MAF but the fault is still there.
I replaced the engine injector loom in September.

Anyone have any ideas?

EGR valve? when it first started playing up i did get alot of smoke out of the exhaust, but not anymore.
Post #46226 24th Nov 2010 9:26pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Have you checked your air supply to the turbo?
Post #46241 24th Nov 2010 11:11pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5425

2006 Defender 110 Td5 USW Zermatt Silver
Remove EGR valve.

Check waste gate moves.

Andy
Post #46402 26th Nov 2010 5:06pm
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Paul_1978



Member Since: 08 Nov 2009
Location: South Yorkshire
Posts: 384

England 2004 Defender 90 Td5 CSW Zermatt Silver
Thanks for replys gents,

Ive had the EGR valve off and cleaned it up this evening.

The fresh air intake valve open and closes fine - fair bit of resistance.
The exhaust air valve was covered in gunk, cleaned it up and checked it opens/closes - quite a bit of resistance there too.

Refitted, still the same, buggar!

Ive had the rocker cover off, cleaned up the harness, and injector plugs/sockets and refitted, still no good (its a new harness as well)!

Taken it for a run, symptoms seam to be in 1st and 2nd you hit a dead band when the engine should deliver more power before changing gear. In 3rd the engine is lumpy, stuttering a bit.

Think i need to plug it in to a computer!
Post #46435 26th Nov 2010 8:51pm
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TDfive



Member Since: 02 Sep 2008
Location: somerset
Posts: 51

United Kingdom 2005 Defender 110 Td5 DCPU Java Black
Paul_1978 wrote:
Thanks for replys gents,

Ive had the EGR valve off and cleaned it up this evening.

The fresh air intake valve open and closes fine - fair bit of resistance.
The exhaust air valve was covered in gunk, cleaned it up and checked it opens/closes - quite a bit of resistance there too.

Refitted, still the same, buggar!

Ive had the rocker cover off, cleaned up the harness, and injector plugs/sockets and refitted, still no good (its a new harness as well)!

Taken it for a run, symptoms seam to be in 1st and 2nd you hit a dead band when the engine should deliver more power before changing gear. In 3rd the engine is lumpy, stuttering a bit.

Think i need to plug it in to a computer!


sounds like the throttle sensor to me -------------------------------------------------------
05 110 crew cab td5
1987 90 tc TD/200TDI DISCO CONVERTION
Post #46455 27th Nov 2010 12:29am
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Paul_1978



Member Since: 08 Nov 2009
Location: South Yorkshire
Posts: 384

England 2004 Defender 90 Td5 CSW Zermatt Silver
Fixed it.

Found a burnt up connection on the fuel pump relay under the drivers seat.
Just remade it off and jobs a good en, wouldent start this morning.
Post #46473 27th Nov 2010 10:31am
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TDfive



Member Since: 02 Sep 2008
Location: somerset
Posts: 51

United Kingdom 2005 Defender 110 Td5 DCPU Java Black
Paul_1978 wrote:
Fixed it.

Found a burnt up connection on the fuel pump relay under the drivers seat.
Just remade it off and jobs a good en, wouldent start this morning.


well done mate saved a trip to the main stealers Mr. Green got to be a good result Wink -------------------------------------------------------
05 110 crew cab td5
1987 90 tc TD/200TDI DISCO CONVERTION
Post #46495 27th Nov 2010 6:25pm
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Paul_1978



Member Since: 08 Nov 2009
Location: South Yorkshire
Posts: 384

England 2004 Defender 90 Td5 CSW Zermatt Silver
Top result mate, thanks for the advice gents. Been playing in the snow today, never missed a beat. Still going to remove the egr valve.
Post #46505 27th Nov 2010 8:46pm
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TDfive



Member Since: 02 Sep 2008
Location: somerset
Posts: 51

United Kingdom 2005 Defender 110 Td5 DCPU Java Black
Paul_1978 wrote:
Top result mate, thanks for the advice gents. Been playing in the snow today, never missed a beat. Still going to remove the egr valve.


good idea just done mine couple of weeks back slight improvement , got a K&N as well that made more of a differance to the performance tbh seems to pick up a tad better as a whol;e though. -------------------------------------------------------
05 110 crew cab td5
1987 90 tc TD/200TDI DISCO CONVERTION
Post #46506 27th Nov 2010 8:54pm
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apmoore1976



Member Since: 04 Jan 2011
Location: Glos.
Posts: 11

United Kingdom 2006 Defender 90 Td5 SW Zambezi Silver
Hi stupid question....what part number K&N filter did you use? My 90 is an 06 and all the parts just seem to go up to 04...would assume same bit of kit for the last 2 years of the TD5 but very new to the car...

any help would be greatly appreciated. Previous
06 Defender TD5 CSW Silver LE
Post #52784 13th Jan 2011 4:25pm
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Paul_1978



Member Since: 08 Nov 2009
Location: South Yorkshire
Posts: 384

England 2004 Defender 90 Td5 CSW Zermatt Silver
Ive now removed the egr valve and the TD5 now seams less noisy and runs smoother, or is it just me?

Dont know about the K&N air filer, sorry.
Post #52785 13th Jan 2011 4:36pm
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apmoore1976



Member Since: 04 Jan 2011
Location: Glos.
Posts: 11

United Kingdom 2006 Defender 90 Td5 SW Zambezi Silver
ah cool. good to note...read up on performance tuning kits an one of the options is an egr bypass. Previous
06 Defender TD5 CSW Silver LE
Post #52787 13th Jan 2011 4:40pm
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