my impreza will start but wont stay running. i replaced all sensors, o2, cam,and crank, still wont stay running. if enybody can shoot me some suggestions.i would apeciate the input.

IACV hose loose?

No check engine codes?

 

First thoughts are MAF sensor, loose/broken vac hose, fuel pump

how long does it stay running for? alittle more detail will help, does it slowly kill itself? ???

Start with the simple things.  You know your getting spark, but are you getting it consistently?

 

Also, are you consistently getting fuel?  I don't see a fuel filter on the list.

 

And when was the air filter replaced?  Yes a super clogged air filter can cause problems.