Hitting either boost cut or fuel cut
 

Hi I have not had boost cut on my 94 wrx but have just changed the injectors to yellow 440"s and not had time to update the fuel pump..... and just took it for a drive and I'm getting underload and it's cutting out is this fuel cut or boost cut any information appreciated thanks

tell me you have had it mapped after changing injectors!!

what do you mean by underload??