ze wagon, pump changed...still dying..

[ZE WAGON]

hey guys, so i changed the pump, put in turbo supra pump, it still starts an will keep going if i give it sme throttle but othawise it dies. so starts, revs up to 1500rpm an then dies?..cold start injector is working. cant find any vacume leaks..im thinking of maybe getn the injectors flow tested?..any help would be great!! cheers guys.