My 280Zx is screwed! Today I drove it around then all of a sudden i couldn't rev my engine past 2500rpm... I have nooo idea what might be wrong. I just about didn't make it home because when i'm driving I can't let the engine go over 2500 before it cuts out and acts like its in nuetral. If i hold the pedal to the floor in neutral the engine revs up to 2500 then quits then back up to 2500... then engine never actually turns off though, just idle speed. could it have something to do with the efi?