Audi A4 2.5 v6 2004- no turn over

[Nostartaudi]

I have an 2004 Audi A4 convertible 2.5 v6 tdi - the car started to cut out I took it to a mechanic who said that car was lacking fuel and needed a new fuel pump, It had 3 codes 
P3103 - intake flap
P1570 - Engine Control Module (ECM) Disabled
P1672 - Fan control Circuit:Open Circuit/Short Circuit to ground 

I bought another fuel pump with the same part number & had it coded back to the car. I had the water pump, thermostat, timing belt, tensioners and turbo changed. The car now is showing no faults but will not start with out quick start spray, as soon as it’s worn off the car cuts back out.

Can somebody please help me - thank you 🙏🏽 

[Steve Q]

Any warning blights on the dash. Could it be an electrical issue? 

What has the garage said who did the work?