Magic Carpet 510 Posted April 24, 2010 Share Posted April 24, 2010 Calling VG30 experts! 1986 VG 30 out of 300ZX installed into a 510. The motor is hesitant to start, but will sometimes fire right up, sometimes needs a shot of carb cleaner or something. It runs very rough but will run, sometimes cutting off. This is with a computer out of a 200sx. If we put the computer out of the 300zx in the car, it will start up faster, run noticeably smoother. The only problem is, after a few seconds of running on that computer, it tells the fuel pump to shut down. Any ideas? Thank you for any ideas. -- Ron Clifton Winston Salem,NC 71 510 VG30 in progress Quote Link to comment Share on other sites More sharing options...
Magic Carpet 510 Posted April 24, 2010 Author Share Posted April 24, 2010 Update Problem solved. We were running the fuel pump straight to ground. The 300 xz computer wants to control the ground through pin 34, it is a shielded wire on the 300. We hooked up a wire to pin 34 and run it through the fuel pump relay and ZOOM ZOOM!! So far so good. Thanks Quote Link to comment Share on other sites More sharing options...
Hitman Z Posted April 24, 2010 Share Posted April 24, 2010 Good to hear that the problem is solved. Good luck. Quote Link to comment Share on other sites More sharing options...
Nissanxrma Posted May 3, 2010 Share Posted May 3, 2010 Good to hear that the problem is solved. Good luck. Why do you feel the need to have a s12 ecu instead os a z31 ecu? Quote Link to comment Share on other sites More sharing options...
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