Ok im getting a 95 KA, tranny, harness, and ECU. I have a SOHC S13. I've done a sohc-dohc (both s13 motors) swap. There isn't much info on the sohc to s14 dohc swap. Most people use the intake manifold from the 91+ S13 KA's. I'd like to keep the 95 stock, so i can use the OBDII system. I know i'd need the DOHC cluster along with what I'm getting. but what else?!

-would i need to get the body harness from an S14 to use my interior things with the s14 engine harness and ecu?
-would i need to use the s14 climate controler?
-Which connecters from the S13 body harness are different from the S14 body harness?
-if i get 91-94 PS high pressure hoses i can have PS right?
-What should i do for the A/C lines?

I'd like this to be a nice reliable daily driver for now, and be able to use the OBD II connector to pull codes among other things. all help is appreciated.

 

First off, OBD-I ECUs can pull codes, either via the blinking LED or through Consult.

The easiest way to do this is with a S13 dual cam harness, ECU, PS pump, PS lines, and custom AC arrangement. With this, you can keep your 95 intake manifold. People like me swapped the lower intake manifold, simply because it was easier to delete the emmisions rats nest.

If for some reason you absolutely hate having free time on weekends, I guess it is technically possible to run an S14 harness and ECU. Be warned that the interconnections between the motor and chassis (F1, F9, F10) are no where near lining up. This is further evidenced by the fact that a conversion harness a S13 SR (which, layout wise is very close to S13 DE) into an S14 costs 3 times as much as normal. Now that that's out of the way, you could use your stock climate controller, and I'm pretty sure your other interior functions would remain the same. IIRC, only the wiper controls are built into the S14 harness, so you'd just have 2 sets (and you'd ignore the S14 ones). I think you might also have to add a rear O2 sensor to have a complete OBDII system, too. And yes, you'd need a DOHC cluster.

*edit* oh yeah, the S14 KA has an internal coil distributer, where the S13 KA is external. If running the S14 harness, you'll use the S14 distributer. If converting to the S13 harness, you can either source the S13 dist, or have someone like Taylor wire in the S14 unit for you.

 

Thanks, clear conscise, Epstien is the electro-man. Has anyone ever kept the OBDII on thier swap?

 

i think the obd 2 is more of a hastle than its worth, with how easy it is to pull codes from nissan ecu's.

 

yea, im leaning towards just trying to source the S13 dohc parts. anybody have them?

 

i just sold alot of the stuff i had today. i think.
if it falls through ill let you know.

 

alright. thanks.