Laguna Problem - No Accelaration

[BREMBO]

Coming into work this morning, Laguna 1.6 DCI

Slowed down from doing about 70mph to around 20mph to enter the roundabout, come to accelarte and there is nothing or it is very very slow

There is a funny rumbling sort of noise aswell, but no lights on the dash minus the service light and it wont be in limp mode as it can still do more than 40mph but just slowly.

Might be worth noting that I think this has a turbo aswell

Not my car but I was in it, just wondering if there is a fix we can do as we need to get home later!

Thanks
Ben

 

[Sean6545]

Its the 1.9 dci f9q engine. No such thing as a 1.6, it sounds very much like a flow sensor problem. Try unplugging it and see if thats any better.