Mr

Hi new to the site hoping someone can shed a light on my problem

I have a a3 8p 2.0tdi bid

Driving the other day and it stopped tried starting again no look code read it no fault code so check for diesel and very small amount coming out

Fitted new filter and in tank pump (Bosch unit) 

Seems to be good pressure now but still will not start 

Anyone had this problem before 

Thanks dave