Ka24de wiring for my 510 Q's

[MicroMachinery]

Hey, new to this forum. Have a couple questions for anyone who may have some experience in the area of the 510 KA swap.

 

I'm working on doing the KA swap into my 71 510. I recently stumbled upon a heck of a deal on the engine & trans. I got the engine(KA24DE) from a 91 240sx, pretty much complete, along with what was said to be an s14 5-speed. I also got a wiring harness with it. Upon mocking up the engine w/ the harness on the stand, it turns out that there is a 2nd wiring harness that hooks into my oil pressure, starter, alternator, and trans.

My question on this is, do I need this harness? Or would it be possible for me to just feed these circuits off of existing Datsun circuits(I'm guessing not). And if so, what do I do about the 3 sensors on the tranny(I'm guessing they're a neutral/safety, reverse light, and speed sensor?).

Also, am I going to need the fuse/relay boxes? I haven't seen anybody's car up close(or paid attention when I did) enough to take notice. I don't want to half-a** this, but I'm having a hell of a time tracking down a 91-94 240sx to get these parts out of.

The electrical parts I need at this point(to the best of my knowledge), are:

 

-ECU

-Lower Wiring Harness

-MAF

 

I have the larger Wiring Harness segment that plugs into the Distributor, Fuel Rail, Throttle Body, etc.. but that's it. I'm not sure if there's anything else I need. I'm sure someone here knows EXACTLY what I need, and to whomever you are, thanks in advance.

 

Cheerio!

[WagDatto]

http://forum.ratsun.net/showthread.php?t=549

 

In our How To Section, there's this big writeup on the basics you'll need to know.

 

As far as the lower harness, you can splice into it for whatever you need. Oil pressure can be be wired to an aftermarket gauge, same with the reverse gear sensor on the tranny, etc.

[Icehouse]

As stated above that harness isn't needed. For any more info we need pics of your car :D