Robftw Posted May 15, 2011 Share Posted May 15, 2011 I can't find anything on this subject, and i cant find a datsun parts manual online to cross check the parts numbers. The 280zx dropping resistor looks similar to the 280z' Are they interchangeable? Car has a 77-78 engine in it. Quote Link to comment Share on other sites More sharing options...
afbrian13 Posted May 28, 2011 Share Posted May 28, 2011 I am going through wiring this weekend. I have a 76 putting an 81 motor and harness in mine. Last night i swapped the drop. res mount so i JUST looked at this. They are different. The z resistor is actually 2 different ones bolted toghether. one for 4 injectors and one for the other 2 injectors(8 wires). the zx has one resistor for all 6 and the power wire coming from the efi relay (7wires). I don't see why you couldn't just look at the 2 diagrams and wire it up. Take both sides of the zx plug with some wire would make it easier. you only need one power wire instead of the two. Shouldn't be too hard. Have fun! Quote Link to comment Share on other sites More sharing options...
Tony D Posted June 5, 2011 Share Posted June 5, 2011 The 81 has ONE connector, earlier ZX's have the same 4+2 configuration. I chose an 81 resistor package to use with my Megasquirt because it was a single unit that had one connector. It's the only one like that. Everything before that point is identical. It's in the EFI section of the FSM...if you take a look online and download the free manuals, you will see they are identical (looking at the parts, they usually all have the same JECS number as well!) Quote Link to comment Share on other sites More sharing options...
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