Got the code p1247 have changed the four boost hoses cleaned the sensor still getting restricted performance and can hear it low Revs high revs doesn’t matter. I’m stuck with what to look at next any help would be appreciated cheers

The fault code P1247 on a Range Rover L322 indicates that the turbo boost pressure is too low. This can lead to slow acceleration and restricted performance. Common causes include air leaks in the turbo boost pressure system, such as damaged hoses or a leaking intake manifold.

But its more than likley an air leak on intake rather than turbo related

Last edited by pcourtney on 16th Apr 2025 8:06pm. Edited 1 time in total

I’ve changed the four house to silicone still same issue now waiting to do a smoke test have seen the plenums can split bit annoying

The air instake hose ( throttle body end ) usually needs looking at, I had to do mine with three extra o rings, hundreds of us on the forum have had to look at this area first as it easily gets loose, suggest a
search on the forum - lots of advice on "Restricted Performance" when related to air intake, oil cooler gaskets, etc etc It's one of the main failings on the 4.4 TDV8 cars - good luck

Cheers mate funny you say that where the hose goes onto the body with that spring clip does seem loose