autospot Posted June 19, 2007 Share Posted June 19, 2007 Hey guys i have a 1987 turbo that i converted from auto to 5 spd ita all together but i have no responce from the key to turn the motor over. also no fuel pump activity Obviously i need to deal with the neutral saftey switch [what do i do there }also using the 87 turbo auto ECU but have a 5spd as well [does it matter which ECU i use}what about all the extra tranny wiring ? it all unplugged from the car but is that where i need to go back to for the safety switch issue ? please give me some direction here if you have dealt with this before thanks Greg autospot@knology.net Quote Link to comment Share on other sites More sharing options...
VinhZXT Posted June 19, 2007 Share Posted June 19, 2007 The tranny wires you were talking about is what causing a no start condition. These wires go to a starter inhibit relay. Get a manual and find out which wires for which relays and you can by pass them by shorting them together. I have done this on a 280ZXT and I don't know whether they changed the design on the 300ZX. On the 280ZX you have to short 2 pair of wires together to get it started. Good luck V. Quote Link to comment Share on other sites More sharing options...
autospot Posted June 20, 2007 Author Share Posted June 20, 2007 So is that possibly why the fuel pump isnt coming on due to the neutral safety switch loop not being completed Quote Link to comment Share on other sites More sharing options...
autospot Posted June 21, 2007 Author Share Posted June 21, 2007 ok got the safety switch problem solved now for the no fuel pump power issue any ideas??? Quote Link to comment Share on other sites More sharing options...
VinhZXT Posted June 21, 2007 Share Posted June 21, 2007 Do you have sparks? I remember the neutral switch caused a no sparks condition also. No sparks therefore no fuel. Double check to see you can crank the car over and you have sparks. If you have sparks then the no fuel is a different problem. Try to connect 12V directly to the pump and see you can start the car. If it starts then trace your fuel pump signal back to the ECu to see where the problem is. GL. Quote Link to comment Share on other sites More sharing options...
autospot Posted June 22, 2007 Author Share Posted June 22, 2007 yeah i have spark the funny thing is the car ran before we tore it apart .when we power the fuel pump seperately it comes on but no fuel is coming out I just dont see how the pump could be bad or clogged up when it was running a week ago but we still dont have the pump coming on with the key Quote Link to comment Share on other sites More sharing options...
autospot Posted June 24, 2007 Author Share Posted June 24, 2007 ok i have found the fuel problem the tank, fuel pump, lines, were all nasty as hell with old gas .The electrical is fine its just gummed up with bad gas thanks for your help. Greg AUTOSPORTS Quote Link to comment Share on other sites More sharing options...
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