I purchased my FFRR from Quirks in Wickford, Essex and when the fault first happened they did get me to take it in to Land Marque in Hadleigh for diagnostics. They said they found an engine management sensor error and reset it. The fault code cascade then happened again some four weeks latter and didn't reoccur for another two or three weeks. Everytime turn off restart and all ok for another few weeks.
I appreciate that the faults that are listed are not physical ones and a result of a cascade on the fault sensors. The frequency increased and I then took it to Dave Barber at RCV in East Peckham. Initially he thought it may be the battery but ruled it out when he looked at the fault codes and checked them with land rover technical.
They diagnosed a fault sensor on the fuel injection pump with one EGR valve stuck in the open position. My RR was booked in and the injection pump and one of the EGR valves was changed. Next day after i got it back the fault occurred again, however RCV took it back and found a bad connection near the injection pump. They claimed they checked all the surrounding connection, earths etc and returned my car. All has been fine for around four weeks, not a single incident. Then on the 28th Dec it all started happening again but more frequently, sometimes twice in a 15 mile drive but only when I take my foot off the throttle and my idle had become a concern as it is up and down and nearly cuts out when sitting out lights or a junction. Major pain.
I also fitted a new Bosch S5 battery last Sunday and for 36 hours I really thought it seemed better with no faults reported and better smoother idle control.
It goes back to RCV on Monday and I hope it gets sorted. Ivor has also advised me off another independent service agent near Leeds Castle, Maidstone area.
I will ask for a copy of the fault data and report here on Wednesday. Steve B

RR TDV8 56 VSE

Roll on Monday and getting my RR in to hospital for some tender loving care. Major Fault cascade again last night within 800 yards of leaving work. Stop, restart, another fault cascade, off again and restart, all ok. Now running like a dream but for how long.  Steve B

RR TDV8 56 VSE

The firm that I have been recommending is AHL Engineering run by 2 proper LR enthusiats who are brothers - Angus & Howard Leat.

http://www.ahlengineering.co.uk/

Not wishing to slag RCV off as I have used them a few times but on the wife's D3 EPB fault they, after a string of mis-diagnoses, recommended a new EPB loom at a cost of an estimated 7 hrs labour + parts!

The boys at AHL traced the wire continuity until the fault was found & apologised for the 3 hrs it took them at £30 less per hour than RCV

Nuff said!  Quis custodiet ipsos custodes?

15 MY 110 XS USW

54 FFRR Vogue TD6 Touchscreen - Gone!
56 FFRR TDV8 VSE - Gone!

Steve,

In my experience the fact that the vehicle throws ups fault codes when you are slowing down, may be due to one of the following:

1) Faulty wiring / connector

2) An issue with the fuel pressure control valve (DRV) on the common rail, this is not to be confused with the rail pressure sensor, it seems to me that your vehicle may not be able to "remove" the fuel from the fuel rail fast enough after you have take your foot off the throttle to slow down. This will lead to the vehicle running badly.

3) EGR system issue i.e not opening and closing in sync with the driver demand.

Unfortunately I do not believe that this problem can be diagnosed through the forum, any repairer will need to work logically and methodically through the issue.

I wish you all the very best, I am sure you are at your wits end, but don't give up. Please ensure that any repairer you use can prove their findings i.e, if they say the high pressure pump is working, ask them to prove or explain how they know this - A good repairer should be able to do this.

Stephen

Thanks for the information. The more I can ask and know about similar fault problems the more I feel I can push for the answer.

If they cant offer a solution this time I guess its time to try someone else. I cant believe it is a complex problem as when it is ok, which is most of the time, it is a real pleasure to drive.

I guess intermittent problems, especially electrical ones, are always a complete to fix. Steve B

RR TDV8 56 VSE

Steve,

You are absolutely right, being an independent Land Rover specialist myself, I can confirm it quite difficult for a garage to quickly identify a hidden and intermittent electrical problem. If the fault does not present itself at the time of vehicle inspection a technician will find that every diagnostic test he or (she!) carrys out will provide him with results which meet the correct operating criteria.

If the garage you are going to cannot find a fault due to the intermittent nature of the issue, I would recommend that you continue to work with them (assuming you have confidence in them), this might seem strange. But heres why:The garage you are using will know the issue you are having and will have already carried out various checks and procedures to narrow the issue down. If you move garage you have to go through the same procedure again, and the same checks will have to be done on the vehicle. (Of course to be fair another garage might put their finger on the issue straight away!)

If the garage cannot find the issue, why not enquire if you can leave it with them for a week or two and let for example the owner / foreman drive it for a while to see if the issue pops up while they are driving it. - This is a widely carried out practice and assuming the vehicle is insured correctly what harm can it do?

Another method a garage can try involves a data logger being plugged into the car which basically records various sensor data as day to day driving is carried out (a bit like a black box on a plane), however the data recorded by this is really only useful if the fault occurs while it is plugged in.

Hope this is of some use.

Stephen

Well she goes in tomorrow morning for what I hope is the last time and all gets a fix. Had four more fault cascades over the weekend and a very hit and miss idle. But drives on the motorway like a dream.

Will post some positive results on Wednesday......fingers crossed. Steve B

RR TDV8 56 VSE

Well dropped the RR in this morning with a full report on the last few days and the continuing fault problem. Not a positive reply from the service agent as they are as fed up as I am about it. Not earning nothing out of this repair. I was advised to sell it on fast if they cant find it this time.

Ever get the feeling perhaps they have already given up trying to find my RR's problem. If they dont find the root of the problem this time I guess I will move on to the next repair agent, I'm not giving up on her. Only had her 6 months but its a true romance. Steve B

RR TDV8 56 VSE

That's what Roberts said about my wife's D3 EPB!

One trip to AHL Engineering & all was sorted. Problem has never reocurred since!

As most garages, they just want to replace a part & then move onto the next job. Proper engineering & repair is hard to come by now! Quis custodiet ipsos custodes?

15 MY 110 XS USW

54 FFRR Vogue TD6 Touchscreen - Gone!
56 FFRR TDV8 VSE - Gone!

Steve,

Find a new specialist, pronto. Sounds like they are short on knowledge, talent, and integrity from the advice they are giving you. I'd call them and pick it up now, from the sound of their attitude they are pretty certain not to fix it, though they may find something you can replace on a speculative basis!

I think maybe they are the problem rather than the car, it's all too easy for an inept mechanic to throw his hands up and say 'It's a dog, sell it', you take a loss, and somebody will take it to a better mechanic and have a steal!

I can't believe they're telling you to sell it with an intermittent fault! Not good at all. Range Rover-less at the moment - Pining!

piecost76 wrote:

The firm that I have been recommending is AHL Engineering run by 2 proper LR enthusiats who are brothers - Angus & Howard Leat.

http://www.ahlengineering.co.uk/

Not wishing to slag RCV off as I have used them a few times but on the wife's D3 EPB fault they, after a string of mis-diagnoses, recommended a new EPB loom at a cost of an estimated 7 hrs labour + parts!

The boys at AHL traced the wire continuity until the fault was found & apologised for the 3 hrs it took them at £30 less per hour than RCV

Nuff said!

As odd as this may sound, when my 2010 lit up like a christmas tree and gave errors on every system, it turned out to be a fault with an ABS sensor. Nearly all the systems require input from the road speed sensors. so when they go off the scale - BONG.

Nothing has any influence over when it goes wrong, which was why mine took a while to hunt down too.....

Well, got the call from my service engineer and I am told that my problem might be the Fuel Valve Rail Pressure Sensor as the fault codes are pointing to it (makes logical sense, I guess). They are going to fit it and give me the car back for a week or two to trial. If there is no fault then all good, if the fault returns, back to scratching my head. Steve B

RR TDV8 56 VSE

Hi Steve,

I am glad to hear they reckon they might have identified the issue, however I am slightly confused, I thought that you mentioned that they changed the rail sensor in your first post?

Have a look at the following video on youtube (I hope I am allowed to post the link - if not my apologies to the moderator)

The video shows in my opinion one of the finest diagnostic practicioners in the UK (Frank Massey - ADS) explaining how to prove whether a high pressure pump and associated common rail components are in full working order.

&feature=related

I hope your fault is sorted.

Original repair was the replacement of the fuel injection pump and sensor. I was told that they are one and the same so the whole pump had to be exchanged. Now they are going to replace the fuel pressure rail sensor. The you tube vid looks like the way to spot the fault.

I past it onto them. I would not blame them in thinking that I probably think that I think I know it all. whatever gets it fixed. Steve B

RR TDV8 56 VSE