I used the JDM manual harness. Started right up but idled lousy. Code 18 and 40. Not too bad for right out of the gate. Got rid of the codes and it idles at 800 rpm real smooth. The only thing left to do is hook up the clutch switch and 1st and 2nd. Any body know what the 1st and 2nd switches do? It's a real pia to hook them up since they go to 2K and 2L. If there is no benefit I wont bother. So far everything works. Speedo and reverse lights. Even lights up a red R on the instrument panel.
Dave

 

Did you swap the dash harness to a manual one as well or just modified the originial harness?

 

I removed X-05 and X-14 from the auto harness and modified the JDM using the JDM ecu. There are some major differences such as the air temp sensor isn't even on the same connector.
Dave