 | Home > Puma (Tdci) > 110 failing/shutting down |
 
|
|
|
| lrmaniac Member Since: 04 Feb 2010 Location: Lisboa Posts: 762   
|
Hi
Was driving to a Land Rover event last Thursday and my 110 started to fail... It looked like the fuel had run out... At the sixth time I gave up... Pumped the fuel out, filled the tank with new fuel... Did not work... And left the car there... Today I came back from the show, replaced the fuel filter, connected it to this reader and got this error...  Click image to enlarge The car is still failing but managed to drive it so far... Still 200km from home now... Anyone got a clue? Or experienced something similar? Thanks Regards Joao '10 Land Rover Defender 110 CC '08 BMW F800GS '64 SIIA Forward Control '69 SIIA 109 ZA CKD _____________________________________________ You have the right to remain silent. Anything you say will be misquoted, then used against you. |
||
4th Jun 2017 4:16pm |
|
| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720  
|
Looks like someone has fitted a new VCV and then not done the calibration on it. A pump re-learn cycle might do it, but if it's been run for a while the PRV might have now blown.
|
||
|
4th Jun 2017 9:34pm |
|
| agentmulder Member Since: 16 Apr 2016 Location: Outer Space Posts: 1324 
|
Leads to the question how did it forget about the last relearn out of the blue, and how does it 'know' that it has lost the values? (Does the ECU have values that signal it needs a relearn done (like 'null' or perhaps negative) or a dedicated flag, or does it do a check for sane numbers within a range?)
When I replaced my VCV, I didn't get this error before the relearn ... Did you get a remap recently perhaps, or any other fuel related engine tinkering? Does it run noisy, lag, inefficiently, what about idle - what happens when it konks out? Also, are you clearing the fault before retesting? I know from designing much (much) simpler systems that it's very hard to make error messages correctly communicate exactly what is wrong with a system, especially since in a faulty state the messages can be faulty themselves, throwing red herrings. It's better to think 'something made this message pop up' as opposed to exclusively 'the message popped up because of what it says'. Solved the bowel problem, working on the consonants... |
||
|
4th Jun 2017 10:53pm |
|
| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720
|
Someone has attempted a relearn but it failed, and they couldn't be bothered to do it again. If they've replaced the VCV but the PRV was blown then the relearn will fail. The computer then knows it hasn't been done because it failed.
|
||
|
5th Jun 2017 8:41am |
|
| agentmulder Member Since: 16 Apr 2016 Location: Outer Space Posts: 1324
|
So, potentially nothing to do with the current issue...
But yeah, may as well go with it for now. Hopefully your tool can do the job, some of them have the relearn built in. And yes, check the relief valve, it's on the end of the common rail. Solved the bowel problem, working on the consonants... |
||
|
5th Jun 2017 8:45am |
|
| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17354 
|
I would be deeply suspicious of the VCV.
You will get this error if the VCV does not behave as expected when the ECU attempts to calibrate the VCV, which it does periodically and autonomously at intervals which increase as the vehicle's mileage increases. In effect the error means that a calibration cycle has failed to complete. If the VCV is good, then vehicle should run regardless and may run quite well, though probably not as well across the full range of fuelling conditions as it would if calibrated. Eventually the fault may even clear itself if a calibration cycle completes successfully. If the VCV is faulty, then is it prbably impossible to get a successful calibration cycle completed, and the vehicle will probably have all manner of fuelling issues. The fault symptom you describe (failing as though out of fuel) is a classic symptom of a faulty VCV. |
||
|
5th Jun 2017 10:30am |
|
| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
|||
|
5th Jun 2017 3:38pm |
|
| lrmaniac Member Since: 04 Feb 2010 Location: Lisboa Posts: 762
|
I've managed to drive the car back... the fault was cleaned but it turned back on when starting...
I've had a remap 4 years ago....never had an issue before... Aparently it took five minutes to do a routine procedure (don't know which) to reprogram the fuel pump! back at home at a garage... Done 1500km so far! Yesterday did 300km to Lisbon and 300 km back to where I am now. No issues...when driving But has had some strange issues at start up. When I turn the key, the car turns on, but then suddenly it shuts off and on in a second...I notice this because of the changes in revs and the ignition light turns on again... Could this be a that VCV you tlaked about it? What is the VCV valve? 
This has happened twice... Regards Joao '10 Land Rover Defender 110 CC '08 BMW F800GS '64 SIIA Forward Control '69 SIIA 109 ZA CKD _____________________________________________ You have the right to remain silent. Anything you say will be misquoted, then used against you. |
||
|
21st Jun 2017 10:39am |
|
| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
|
Looks like this, and lives in the back of your high pressure pump which is on the mid to lower right hand side of your engine (as your looking at it with the bonnet up)
Click image to enlarge 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
||
|
21st Jun 2017 12:08pm |
|
| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720
|
it basically controls the fuel pressure in the fuel rail. If the pressure is too high, it reduces the supply of fuel, too low and it increases the supply. So if it's not calibrated correctly then the ECU doesn't know how much to open or close it to regulate the fuel supply.
|
||
|
21st Jun 2017 2:45pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
