SWAP PROBLMES HELP car not starting.

[TenshiNoShibo]

Allright i have done my part in searching but getting thesame answers everywhere and still doesnt solve my problem.


Heres the Deal. I Swaped in a KA24DE intoo a 89 AUTO
I have done everything in the auto to manual swap.
Jumped the Neutral Safety switch. also



And heres a question i cant seem to find the answer to.
Theres this plug on the ECU that runs to the Dash harness Do i need this to start up the car? I cant plug it in because the DOHC harness is different than the SOHC one so this one plug might make the difference?, anyone know? heres a pic of what im talkin about.


I have changed all the major harnesses took the SOHC tossed it. and Put the DOHC harness in. Including the one that connects to the Fusebox in the engine pass side to the tranny.

Checked all my grounds seems fine.

Anysuggestions would help.
Thanks.

[GSXRJJordan]

*sigh* if it wasnt so late I'd walk you through this, but since it is, I have to just tell you that an "SR not starting" search will give you a rundown of things to check, and an "Sr dash harness" search will show you which wires go where for the instruments. You don't need the dash harness plugged in to get the car started, but it is helpful to have the tach to tell if it's idling right.

props on correctly-sized pics and not sounding like an idiot though

[super240sx7185]

umm hes very wrong u do need the dash harness for the car to start.
the SOHC and DOHC body harness connectors are the EXACT same but the wires are not in the same places on the harness connetors so the color wires you need to connect together will not meet up at the same pin hole.

in reality you dont need to use the connectors, you can just cut off the body harness connectors on the DOHC harness and the SOHC under dash harness and connect the wires together but using teh connectors makes for a much easier and cleaner install.

the wire colors you need to connect are these 5:
Yellow/red --Tach
Yellow/Green--speedo
orange--ignition start
black---ground
blue/black---water temp sensor.

how i connected these was like this:

i wrote down where the 5 wires were located in the SOHC body harness connector by assigning each pin hole on the top row a number and each on the bottom a letter of the alphabet. i wish i saved the paper i wrote them down on. sorry

i next removed the sohc body connecter (white plastic clip) and dohc body harness connector (brown plastic clip) from their engine harnesses.
i reinstalled the SOHC connector onto the DOHC engine harness using only the 5 wires needed and placing them back into the correct positions based on the information i wrote down before i pulled them out.

i used electrical tape to cover all the exposed pins that i didnt need and then taped the whole bundle of wires together for a very need install!


this was taken from a writeup pn 240sxforums by twofortysx

[TenshiNoShibo]

YES! super240sx7185 Thank you VERRY much thats what exactly what i needed to hear.