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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
Joining the TD5 non starter club!
Finally the day has come that i can say my td5 MY2001 isnt starting.

Had an issue 3 or 4 weeks ago where i had oil in the red plug of the ecu, i cleaned it all out and there was no oil in the injector harness plug so i can only assume it was residual from a prevous leak. Engine started absolutely fine after.

Havent used the car since...

Yesterday i fitted a new stereo, and had the top half of the dash out to route some cables where i wanted them. Started the car and had it running for 20 minutes or so while i was setting the clock, changin all the settings etc and having a listen.

It was running fine but there was one slightly odd clack/clonk/possible misfire but it carried on idling fine and i didnt think anything of it.

Went to start te car 2 hours later and its turning over absolutely fine, nice and fast but not starting. Sounds like no fuel as its not catching at all, just turning turning turning.

Tried again this morning, same thing.

Ive checked the red ecu plug - completely Dry.
Checked the injector harness plug- Completely dry.
Fuel pump sounds like its running absolutely fine and primes.

Am i right in thinking possible crank position sensor would stop it delivering fuel? I have one in the shed if you think its a worth while change but looks like a right arse to get to.

Any help is always appreciated
Post #816526 23rd Feb 2020 11:24am
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897
England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Put your finger on the fuel pump relay while cranking.
If it vibrates you need a new battery.
How old is your battery? 
Post #816530 23rd Feb 2020 11:38am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
Battery is 2 years old and lives on trickle charge when not in use.
Fuel pump sounds like its running fine. A single click when the ignition is switched on.
Post #816531 23rd Feb 2020 11:44am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5417
2006 Defender 110 Td5 USW Zermatt Silver
Yes a faulty crank sensor would stop a Td5 starting. And it’s easy to change. Some have a spacer, others don’t. So keep an eye out for it.
Post #816534 23rd Feb 2020 11:49am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
A little bit of research says you can test the resistance of the crank sensor at the ecu end although its doesnt say which pins, one is the shielded wire however im not sure what other wire/pin to check across.

My car has a leak out the back of the valve cover gasket so maybe theres oil in the crank sensor plug.

Just watched this

Post #816535 23rd Feb 2020 11:54am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
Just tried my spare crank sensor. There was lots of oil around the plug and the sensor so i gave it a good bath in brake cleaner. Checked the reisitance of the new and the old, both reading 1.25kohm as thy are supposed to. Checked the red plug at the ecu end, also reading 1.25kohm that seems ok... whats next?

EDIT: Have now run a couple of fuel pump purge cycles, no difference, no noise of bubbles or air in the system either.
Also checked dipstick level and gave it a good sniff to see if theres diesel contamination in the oil and it seemed fine.
Post #816540 23rd Feb 2020 12:49pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
Still continuing to diagnose this, today I tried a fuel pressure gauge into the hole of the fuel temperature sensor into the side of the fuel pressure regulator to test the pressure of my fuel pump.

I got 4 bar at the FPR which I believe is about right.

Just waiting for the 20th person in the nanocom group buy then that will be the next step.


Click image to enlarge
Post #818619 7th Mar 2020 12:54pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 898
Canada 2000 Defender 110 Td5 XS CSW Epsom Green
Are you sure you have not messed a wire in the dash to the ignition? Other than that I have no advice to offer for your non start issue but couldn’t resist a comment... must be something about Defender owners and dual sport BMW motos ??? Thumbs Up


 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)
Post #818629 7th Mar 2020 2:24pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
I have just pulled the top half of the dash out again today to check this and I can’t see any snags in any wiring when I put it back and gave it another crank. Same thing. And the car did run fine for 20 minutes immediately after the stereo was installed.

Things I need to check when I eventually get a nanocom are if the ecu is getting its crank sensor reading and to see if the car is immobilised. However I did read a forum thread about someone with a faulty 10as that wasn’t showing up in nanocom.

Ahh yes the bike is the daily and the landy is the summer toy.... I know that makes no sense to most people Laughing
Post #818635 7th Mar 2020 2:48pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 898
Canada 2000 Defender 110 Td5 XS CSW Epsom Green
Mine is the reverse... 110 for daily GS for summer fun. Its minus 10C today and a foot of snow on the ground Big Cry 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)
Post #818642 7th Mar 2020 3:50pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
So the nanocom ariived today!

Only fault code is 1.8 Manifold pressure circuit. (Low Pressure)

Vehicle is showing as not immobilised

No rpm is being registered when cranking.... So this is the fault. I have 2 genuine crank sensors. Both showing the correct resistance at the red ecu plug at pins 13 and 36.

Any ideas? New ECU in case its not reading the signal? OR is there a possibility the pins in the plug arent making good contact
Post #820812 23rd Mar 2020 11:27am
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039
Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
What does the nanocom say is the voltage at the ecu? If that is below 9V while cranking the engine the ecu will not send signals to your injectors. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #820823 23rd Mar 2020 12:19pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
Getting between 10.07 and 10.5V on cranking

As i said in the last post surely the problem is its reading 0rpm?
Post #820826 23rd Mar 2020 12:35pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 860
England 2001 Defender 90 Td5 SW Epsom Green
Update: Ordered a used NNN ecu and a brand new crank sensor (intermotor branded) The other 2 were genuine lr but both used.

If i dont need the ECU i can re sell and it wont hurt to have another crank sensor.

I do have a question for the forum in the meantime:

Pin 16 of the red plug.... A16 - CKP Sensor screened earth

Excuse my ignorance but what does it do and how can i check it?

Ive been checking my crank sensor wiring from the positive and the negative, pin 13 and 36 but i havent been checking this screened earth.

Should i be able to continuity check it to any earthing point or battery neg? Or am i getting this wrong
Post #820897 23rd Mar 2020 10:29pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
see if martin can make you new screen crank sender lead. had one read induct voltage [ bad screen ] new lead in place ecu reading rpm

screen only to ecu plug end
Post #820947 24th Mar 2020 12:16pm
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