Just thought I’d post up....
i have been having an occasional P0108 code with check engine light. Did some research and the LR3 V6 engines don’t have a MAP sensor per se.
The barometric pressure sensor is built in to the EGR valve. Apparently, there is one in the ECU also that it compares to at startup.. I pulled mine EGR valve off and messed with it a bit.
Removal takes a 10mm socket and a large crescent wrench and about 5 mins. Be careful not to drop the water thin metal gasket down as there is a slot behind the water pump that it will probably fall down ( ask me how I know!).

Not too much carbon in it. I popped off the cap and the filter was pretty dirty, so I blew that out and used contact cleaner on the electrical parts.
The diaphragm wouldn’t stay up when I plugged the vacuum lines and when I accidentally broke off one of the plastic vacuum fittings, I decided to just go ahead and replace it rather than try to glue the part on and risk a leak. I didn’t bother to check the sensor for any readings as the error was random.

LR part, which has FOMOCO stamped on it, is over $300. When I compared it to the Explorer V6 part (EGV1055 part number is about $100 aftermarket and is normally in stock at O’Reiley’s), they’re identical with the exception that the top part with vacuum and wiring connector are clocked 90 degrees clockwise. I thought about loosening the clamp tabs and rotating, but the wire is long enough and the vacuum lines can be rerouted. It’s not really pretty, but nothing seems to have too much tension on it. I might try to give the top a twist and see if it will spin. I need to drive the truck tomorrow, so will try it some other time. If I use a screwdriver, it might crack the plastic.....
Funny how many parts are interchangeable, but 3x the price.




No error codes and it’s running fine. Will update if code pops up again....

 

Nice! I absolutely love finding interchangeable parts for Rovers from much cheaper cars, helps me feel better about the genu-whine parts I have to spend a ton of money on. Very nicely done.

 

The Motorcraft CX2064 for the 2004 through 2006 Ford F150 4.6L V8 is clocked closer than the 90 degrees you encountered. I was able to disconnect the wiring on the radiator shroud and stretch it to the connection on the EGR valve to test it.
I sprayed the metal clamp tabs liberally with HD silicone spray and was able to spin the top to the correct clocking without loosening them. Reattached the wiring to the shroud in the original location and has been running just fine. No more engine code or sputtering and stalling.

 

Good thinking with the silicone spray.
Nice tip on the CX2064!

 

Hi guys.. first of all thank you to all the contributors who see this! So I've tried the Ford ExplorerEGR EGV1055 (re-routed the vacuum lines and connector to fit) and the light has come back on. . I took it to the local NAPA cleared the code did some errands (stop and started about 3 times) and it came back on. (P0405)

So my question is... Do our computers only recognize the genuine Land Rover parts or could something beyond the EGR still cause this code? I've checked all vacuum lines and they're all good. The EGR connector is clean and seems to not be damaged. I was thinking maybe the PCV valve may need to be replaced (just because the car is 13 years old) but honestly I don't know if the PCV can cause an EGR code.


Any suggestions are welcomed!!


And by the way I've got a 2006 LR3 SE with the V6 motor.


I'll go update my profile and put this in my signature now.