Here is my PCM software version : 8H2Q-14C204-AB RRS SDV6 HEV Dynamic
XKR 700 BHP with Twin-screw and LSD

avos wrote:

Here is my PCM software version : 8H2Q-14C204-AB

When I had my EGR issues I got code P0490 - have you not had this one as well? 07MY RRS TDV6
Arctic Frost
Aspen Interior

garrycol wrote:

When I had my EGR issues I got code P0490(circuit related) - have you not had this one as well?

Sorry - I must have misunderstood - I thought you had blanked your EGrs and got all the codes you had listed. 07MY RRS TDV6
Arctic Frost
Aspen Interior

No DTC after 200 miles of mixed driving, I can't work out how HDC fault and lowering suspention is linked to P0402, but after replacing one of the blanking plates with one with 8 mm bleeding hole and fitting butterfly valve(with egr pipe) the codes has not returned and no more lowering susp.

So what you are telling us is that we are not able to blank off the Euro 4 engines.
Guess it's a case for Pete at BAS to put in the overtime and sort out a patch for us. In Spain - 2018 F Pace - Frightened away from the Sports due to crank failures
Gone - A couple of RRS, A couple of Disco's. However thinking of another Sport.

In short yes on my specific euro 4, but others have done it, without BAS's patch I will have to explore a bypass system, watch this space!

Bad news, my car also developed under certain conditions fault similar to D4jww, even more codes it was all at once, so suspension, transmission etc. Turn ignition off and on and all was ok again. It was sporadic, but as I couldn’t; pinpoint to fault, I tried to unblock the EGR again, and that has solved the issue,

So its unfortunately not so simple to block it, and also my original thoughts of a bypass will not work as the main reason it goes wrong now is that you get more metered air in which is causing the issues. So it does require an engine program adjustment for the Eu4 cars I am afraid. RRS SDV6 HEV Dynamic
XKR 700 BHP with Twin-screw and LSD

That's annoying Avos, my09 D3 is still running without Faults on 1 Egr blanked and the other connected to manifold in normal method with the difference being the blank plate with 8 mm hole( butterfly back). Its only a Intermediate method with some reduction in dirty air returning to engine. Let's hope the experts show some interested, with all the viewing of this tread and mine on disco3?

Annoying indeed, but I will try to disable one side again, and see what that gives, and then maybe also later test with the 8mm you have choosen to go with.

Just read the posts on the Disco side. The bypass will only work if the ECU will only check the operation via MAP sensor, this is proven and works. Funny enough the MAP check isn’t being performed on my car, at least I ever got the P0401 error.

The ECU does check the EGR operation via the difference in airflow (so MAF readings). What is odd here is that you do get the P0402 error almost immediately, but no check engine light and in principle no issues. However under certain conditions I got the suspension errors, and I think that is related to the “Engine Load” value of the engine (and that is based on the MAF airflow and RPM).

What I can’t see is which ECU is causing the chain reaction, it could be the main ECU, but it could also be others if they use the “Engine Load” parameter. You would have to setup a CAN reader to monitor what happens on the CAN bus to determine exactly which ECU is having the issue. RRS SDV6 HEV Dynamic
XKR 700 BHP with Twin-screw and LSD

check disco 3 for the egr software patch from bellautos

Last edited by aljo on Thu Jul 05 2012 5:11pm. Edited 1 time in total

Just a quick question - My EML has come on again !! had the same problem with my 08 after just 16,000,miles and had to have one of the EGR valves replaced at considerable landrover dealer cost.( the car was three years old and just out of warranty ) I have since learnt my lesson - The car has now done 36000miles and the fault has appeared again , I suspect its the other EGR valve . What damage will it do if one of the EGR valves has failed and I keep running it ???. Mt friends going to put it on the diagnostic later today to confirm the fault.

Are you getting reduced engine performance as well? or just the light RRS gone
Audi SQ5...Gone Audi Q7 S-Line 240 3.0TDI Gone
Audi A6 Allroad Sport 270 3.0TDI

If you get reduced performance then you need to blank the faulty egr because it's stuck in open position. I have driven my D3 with same engine with one egr blanked and the other blanked as well with plate with bleeding hole. So effective running on one egr with butterfly not removed, no fault codes nor reduced performance. However I am beta testing an egr patch for Pete and he said best to remove the butterfly, to prevent the engine sucking oil via the crank ventilation rather than air, which could result in engine running to destruction because of oil burning. This is the very worse scenario with both EGRs blanked, I would say limited risk with running on one egr. But you would still have the EMS light. Two choices long term fit new egr or by remap from Bells autos(Pete) and when Pete has perfected the software patch no need to replace faulty EGRs.