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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16812

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
What fuel rail pressure do you get when cranking?
Post #855445 11th Sep 2020 10:01am
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llessur



Member Since: 15 Nov 2011
Location: Hereford
Posts: 151

United Kingdom 
Plugged in the Nanocom
There were a couple of codes where I had been switching the IPACS so cleared all codes first.
Then with the engine cranking the Fuel Rail Pressure (MPA) was between 140 - 150
Not sure if relevant but the Fuel rail sensor (V) remained at 0.0 whilst cranking

Also read DTCs again after cranking and got
Tested
P0335 Crank position sensor A intermittent
Not tested
U3000
and thank you !
Post #855471 11th Sep 2020 1:13pm
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dorsetsmith



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

P0335 Crank position sensor A intermittent
Not tested

driver side flywheel end at the top

Check plug and wiring to the Crank position sensor may be damage

U3000

Faulty Control Module Control Module harness is open or shorted Control Module circuit poor electrical connection
Post #855478 11th Sep 2020 1:49pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16812

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
A failed or intermittent crankshaft position sensor would certainly cause the sudden death symptom, and would also cause the failure to start symptom since the injectors won't fire unless the ECM can determine when to fire them. Certainly the first thing to check given the presence of that DTC.
Post #855488 11th Sep 2020 2:16pm
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llessur



Member Since: 15 Nov 2011
Location: Hereford
Posts: 151

United Kingdom 
Inspected the Crank Position sensor wiring but could not see anything. Got continuity from either of the pins to earth. Cleaned refitted and tried to start. Engine fired a couple of times but would not run. Retried to start but just cranking and not firing.
Its getting dark, but noticed the brake lights are permanently on. Could be coincidence, but wonder if it is relevant. I think I will unplug the ECU plugs and see if I can individually prove the integrity of the yellow/purple and green wires from the crank sensor in the morning.
Post #855549 11th Sep 2020 7:43pm
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Julie



Member Since: 07 Oct 2017
Location: Nantes
Posts: 421

France 2012 Defender 110 Puma 2.2 SW Keswick Green
Re: Non starting possible fuel issue
llessur wrote:
The engine died whilst driving. I checked for error codes, but non recorded or pending ( divorce is not an option...........yet )


Just take a look, if there's any juice coming out of the injectors

Post #855563 11th Sep 2020 8:56pm
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HardCharger



Member Since: 03 Mar 2013
Location: Manila, SFO, Amsterdam
Posts: 669

2011 Defender 110 Puma 2.4 SW Stornoway Grey
llessur wrote:
Inspected the Crank Position sensor wiring but could not see anything. Got continuity from either of the pins to earth. Cleaned refitted and tried to start. Engine fired a couple of times but would not run. Retried to start but just cranking and not firing.
Its getting dark, but noticed the brake lights are permanently on. Could be coincidence, but wonder if it is relevant. I think I will unplug the ECU plugs and see if I can individually prove the integrity of the yellow/purple and green wires from the crank sensor in the morning.


The brake lights are on? Wasn't there something on this before about the brake lights and engine trouble? I'm sure others will chime in soon. I can't really do a proper search here on the forum right now as my connection is spotty and I'll be lucky if this will post. Something worth looking into.
Post #855589 12th Sep 2020 7:06am
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llessur



Member Since: 15 Nov 2011
Location: Hereford
Posts: 151

United Kingdom 
Turned out the brake lights were a red herring as I replaced the pedal switch as it was faulty. Looks like I may have a short on the Crankshaft sensor wiring so I am rewiring this tomorrow.
Post #855713 12th Sep 2020 7:11pm
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