Car goes into limp mode but no management light on

petrol, diesel, engine size?

what other symptoms are there?

Diesel 2l

No warning

It's cdti 2 litre engine 

It could be a number of things affecting the Engine Management and the only way to proceed from here is to scan the ECU for Fault Codes to see where the problem lies

P0088 high pressure fuel problem goes in to limp mode , any ideas ?

 

Fuel pressure is too high...try changing the fuel filter to ensure correct fuel return flow