Hi all,

Had the dreaded “restricted performance” red light come on a couple of time recently.

Managed to get home then the next day normal again ?

Had it plugged in and the fault P0107 “ absolute pressure in intake manifold - barometric pressure - input low” was logged.

Had no other running issues, but have heard a strange noise coming from the vent on the drivers side under bonnet on the top of the wing that’s feeds the air filter housing ?

If I Rev it, it sucks like mad and makes a strange noise.

I’ve noted the fault only appears under hard driving. General tootling about there’s no issue ?

It’s in at a garage now but hoped the experience on here to help me point out some things to check.

Thanks in advance all !

Sounds like a split inlet manifold or hose. Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

Hi thanks for your reply.

Would I not hear a suction nose from the manifold if it were split ?

I’ll get the mechanic to check that over but was thinking more of a sensor ?

Is there a tell tale sign to look for with a split manifold ?

Thanks

Pop the engine cover off and have a look at the 4 small rubber inlet pipes for splits

Thanks again both !

I’ve passed this on to my mechanic to investigate.

I’ll let you know of any findings 🤦‍♂️

One thing I did forget to mention but don’t know if it’s normal, when the restricted warning is on, if I turn engine off, it continues to run for 3/4 seconds before turning off ???

If anyone has any other suggestions I’m more than happy to hear them !

Thank you again 👍

Just to update, it’s my map sensor at fault.

Thanks for your help guys

The running-on after switch off is often noticed with both the TDV8/SDV8 4.4 and the TDV6/SDV6 3.0 engines when in restricted performance mode.

MAP or MAF letters not necessarily in the right order

MAP sensor. £92 from Land Rover. Things tiny too, you wouldn’t think it could disable a RR !

Just to help others in future. I too have just had a Restricted Performance message on a SDV8. Fault code was P0107-00 MAP sensor. Changed MAP sensor and all good to go. $500+ part in Australia from the dealers but only took 5 minutes to install.

They soon get clogged up, but are usually fine if given a good clean and put back in.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Tried to clean it first, but that didn’t work this time