Gas Free Engine Warning

VEHICLE: PEUGEOT PARTNER 2003 2.0 HDI

On the highway last night while driving, the car started not to eat gas at a time, the cycle could not reach 3000, we continued for another 15 minutes.

Question: Why did the gas not occur? (Diesel Is Not Dirty Was Taken From Shelld)
Question 2: Do you have trouble driving while the engine sign is on?
Question 3: What is the solution if there is a living?

Thanks

I put the engine oil finished and taken care of. emirktpp 2016-07-07 10:13:35