Hi guys.

Have a RRS 3.0 tdv6 2010. Read a few posts on the flat spots and turbo lack when accelerating at junctions and that shunt when re-accelerating so I booked my car in for a remap at Alive.
All went well with Stewart there and also on test drive noticed the smoothness in power delivery and also pretty much non existent lag..

Its been a 10 days since having it done and the cars just been driven locally and for some reason it's developed a lag again. So when I'm driving in the Lowe gears around 20-30 if I put my foot down there's a delay and a slight vibration I can feel before the car then picks up and accelerates.

Spoke to Stewart and he's invited me back to Lincoln to do rolling Road but it's about 1hr45min drive. He did say it's probably not related to or caused by the map and may be a turbine shut off valve sticking issue but just a possible diagnosis not definate until its been checked.

Has anyone experienced this in general or after a remap and what could it potentially be? Will try and get it booked in locally but just wanted to see if anyone has experienced this.

Any advice or help would be welcome
Thanks

Brake switch and PCM update, known issue. JLR released a bulletin about it

However, the update will overwrite your remap. Check with Alive that they can reapply the map afterwards

Many thanks for that. So do I just need to book it in with JLR...?
Hopefully it is that.
Is there a site which mentions the bulletin?
I'm sure alive can upload the file for a small cost from what I remember.

Thanks again

Disco_Mikey wrote:

Brake switch and PCM update, known issue. JLR released a bulletin about it

However, the update will overwrite your remap. Check with Alive that they can reapply the map afterwards

So called JLR customer care and they checked and no pcm recall or update showing for my RRS.
I'll be booking it in with a local specialist but anyone on here with an idea about what it could be?

TIA.

Could it be a loose intercooler hose (that has popped off with the more lively boost)?