RB25det not starting help!!!!

[Gmurda]

whats up guys so yesterday i went to pick up from the paint shop and my car wouldnt start cause for some reason my fuel pump went out so today i changed it to a 320 aem fuel pump and it stil wont start only when i put gas into the intake it cranks up then dies :confused:
my current mods are:
- top mount comp turbo
- rb25 stoch maf
- stock ecu (i have a new power fc i havent installed)
- aem 320lph fuel pump
i purchased the car with the rb25 swap ( the car already ran like crap when i purchased cause its on a stock ecu running a bigger turbo)
please help!!!!!! im new to the whole s-chassis game any help is appreciated.

[Angelrb240]

Fuel pressure regulators are wonderful. When I got my rb20 swapped s13. I never ran a fuel pressure. Car always ran like crap. I then installed it and was running very high psi for my little injectors. Found out my return fuel line was plugged up with rust/trash.

[Angelrb240]

Also pull your CAS sensor off and spin it by hand. (While it is grounded to the chassis) and you sound have everything working like spark. Injectors. And fuel pump with out cranking it over

[Smosher]

If to your knowledge has never been changed install a new coolant temp. Also make sure engine is well grounded atleast one good wire from chassis to block and chassis to head is what i always do. Something i always do regardless.