Following on form this thread http://www.fullfatrr.com/forum/topic38652.html (which has other links within it) I have had confirmation from LR CRC that this is a "false flagging DTC or Ghost Code" which is not of any concern. It will have no effect on functionality and and "if the concern was to affect emissions it would place an EML light on the instrument cluster."

This is pure speculation on my part:-

1. We are not experiencing over-fuelling i.e. the car does not smell of diesel at cold start-up or at all and economy is superb

2. The code is followed by a warning about temperature and not unknown fault as others have had as description after the code

so am I correct in speculating that this code, somehow, has different meanings and consequences?

By the way, I intend having the sensor replaced regardless but it is obvious that I won't be able to convince LR to do it under warranty.

a quick google of that code comes up with,

''Exhaust Gas Recirculation Temperature Sensor''

but what it means doesnt seem to be decided....seems ford have this problem as well.. ... - .- -.




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Giantlandyman wrote:

so am I correct in speculating that this code, somehow, has different meanings and consequences?

The full code was/is:-

P040D (2F) Exhaust Gas recirculation temperature sensor A - circuit high

which relates to the sensor on the passenger side manifold.

Craig at Cam-Tech (rightly) advised that the sensor should be replaced and that his (and others) had been done at main dealers. Now, JLR and main dealers are saying it cannot lead to over-fuelling (which I don't have) and that it can be ignored.

However, others (I forget who on the forum) have had the same code but with unknown fault (if I am remembering correctly) after the code number and ultimately, LR won't replace so I need to have it done, if only for prudence sake....about £40 for the sensor and 3-4 hours labour.

I replaced mine's EGR temp sensor because of the fault code. On dismantling the front section of the EGR pipe that fits inside the inlet manifold to check on soot build-up I noted the copious amounts of soot lining the EGR pipe and the inlet manifold. I don't know if the reportedly failed temp sensor had anything to do with the huge volume of carbon but with less than 40K kms on the vehicle and 22K of those in the preceding 10 months and mostly open-road cruising, I'm rather dumb-founded at the extent of the build-up.

^ That doesn't good at all.

Did you own it from new and is there a chance the previous owner did short trips and used cheap fuel?

The original owner only did 18K kms in 3 years so barely used. However most of my driving is in top gear at around 1200/1400 rpm so also a likely cause but I wondered if the reportedly faulty EGR temp sensor triggered the EGR cooler to over-cool he exhaust gases causing he excessive deposits. I'm now waiting for the final touches to an EGR emulator to be done that will stop all EGR.

I have had my Westminster for two weeks and when I put my IID on it flagged up the code P004D-(2F). So booked it in and a new sensor fitted under LRA warranty. Just got home and guess what, it's back.

Taking it back next week but dealer says it's fine as there is no Engine Management Light associated with it and it drives well with normal fuel consumption and no smoke on start up, under hard acceleration or after idling, so off to Wales tomorrow for a 1000 mile trip, that should check it out. Seems this is a known fault on the TDV8 (Ford) with no guaranteed fix.

We shall see.

I was given some more information about this fault only the other day.

It seems that that sensor is manufactured with set parameters which are too tight/ are easily exceeded. The independent I was speaking to has seen this code on most 4.4 TDV8s (as an Indy and a recent LR Tech) and it can be ignored as far as he is concerned.

I am amazed that your dealer replaced it under warranty as LR Technical are adamant that it cannot cause over-fuelling and told me it wouldn't be replaced under warranty.

As long as there isn't smoking, smell of diesel on start up or poor consumption, they wouldn't replace it. I think Craig is onto something; it depends on if and how the sensor fails or if it simply logs a high temperature.

I was going to have it replaced regardless but I was talked into not doing the work because there was a high likelihood the fault code would reappear with the replacement sensor.

I don't know the ins-and-outs of why they decided to change it under warranty but may find out next week. All I know is that it was present when I checked the fault codes after buying it so maybe they are just being "nice" to me - won't last long I bet.

But the car is running very well !!!!!

"But the car is running very well."

It was, but coming home from Wales the EML came on, car continued to drive well with normal fuel consumption and no loss of power and it got me home. Supplying dealer is picking it up tomorrow for investigation but looks like an EGR issue.

Under the LR Approved purchase rules you get a full refund if not entirely happy after 30 days, so we will see what happens.

sorry to hear that phil, hope it gets sorted ... ... - .- -.




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Full Fat loaded onto a low loader and gone back to MD. Now driving a Disco Sport HSE with the new engine. It doesn't really feel like a LR but goes well, jury is out but I don't think I would buy one and it definitely isn't as good as my Freelander 2.

Car returned this PM with new EGR bypass valve fitted. So far so good, running like clockwork, fingers crossed.