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I got a 1989 s10 4.3 with auto transmission. So where do we start? I was driving home came to a stoplight and it tried to die on me but i did the 2 foot method to keep it running. Well made it home and as soon as I pulled in it shut down and would not fire back up. I could pour fuel down its trought and still nothing. Next day fired up ran good then about 10 minutes later trying to die. So i parked it and replaced knock sensor.. idel control valve.. throttle sensor. rebuilt the throttle body with new fuel pressure regulator spring. And a new main computer box. After all that still has a low idle and stills try to die somtimes. And also wires plugs cap all that good stuff to and new fuel filter. So what could i be missing