mylz Posted September 28, 2013 Author Share #13 Posted September 28, 2013 superlen.....fuel pumps no problem !!! thats why we are baffled......not to good with electrical........but theres all kinds of cut or spliced wires under hood and dash !! got a wiring guy commen out wensday ..... Link to comment Share on other sites More sharing options...
SteveJ Posted September 28, 2013 Share #14 Posted September 28, 2013 Did you download a copy of the FSM, yet? Also, look for the Fuel Injection Guide (XenonS130 - S130 Reference). It's referred to by many as "the fuel injection bible". Link to comment Share on other sites More sharing options...
superlen Posted September 29, 2013 Share #15 Posted September 29, 2013 mylz, There's a big difference between the fuel pump coming on & priming the line vs the fuel pump actually pumping enough fuel to sustain 36psi on the fuel rail while your engine is running under some load. Just hearing the pump come on and load up doesn't mean your fuel delivery "system" if functioning well. It does mean the pump is pumping and that is of course step one. I don't want to harp on it too much, but Zcars are notorious for gunking up the fuel pump inlet screen, fuel dampner, & the stock under the hood fuel filter if they sit for any length of time. Even a little as a year can do it depending on the location, humidity, amount of gas in tank, quality of gas, ect. ect. It does sound like you have some major wiring gremlins to chase down, and you are on the right path to get this checked out and working. Just be ready to re-visit your fuel delivery system after you get the electrical up and going if the car doesn't just run smooth and solid right out of the gate. When your electrical buddy comes over, go straight to the fusible links & test them first. The ecm is powered through these as well as separate portions of the fuse block. Z's fusible links aren't the most robust design ever created & to make matters worse, Datsun stuck a leaky skylight right above them in the hood. Good luck and keep us posted. Lenny Link to comment Share on other sites More sharing options...
ZCurves Posted October 2, 2013 Share #16 Posted October 2, 2013 Post more pics of the areas you are working on. PS, add your Year and Model to your signature line so it will always be there in future posts - see mine below... Link to comment Share on other sites More sharing options...
mylz Posted October 4, 2013 Author Share #17 Posted October 4, 2013 electrical guy flaked.....going to dive in saturday..... Link to comment Share on other sites More sharing options...
cesar280z Posted October 31, 2013 Share #18 Posted October 31, 2013 Did you check the fuel tank?...any debri? Link to comment Share on other sites More sharing options...
Parman
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