Holden colorado wont start after service. Any advice?

[typhoeus]

T
Do these vehicles have a fuel filter (blocked) sensor? If so, the ECU may have turned off power to the pump to save it.

 

[Whal]

Turns out this was the problem. Cab is leaking water inside somewhere, rust and water all under the floor mat. Connector going through the floor to the pump had corroded through the pin. Now to find the leak...

 

[Colly18]

Well done on finding the problem.

 

[cookie64]

I would get some contact cleaner on all of that as the other connectors would be equal to that causing you more issues later if not attended to now, then once the connectors are cleaned and back together put some WD40 over them to inhibit further corrosion.