s13 2jz wiring problems please help thanks - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240sxrb25 · 11-02-2013, 07:49 AM

i have a 1990 s13 that i drove for the last 6 years with a ka24e no problems ever.

earlier this year i pulled the engine and trans and sold it and swapped in a 2jz stock twins motor and w58 5 speed.

i am having a serisous wiring problem with the chassis itself now and i cant figure it out. the ecu and engine harness as a whole is completely unhooked from the fuse boxes and chassis harness.

now, when i turn my key to the ignition spot and turn the key off and take it out the red dummy lights(oil door brake and such)on the bottom right of my cluster stay on. how ever the accessories such as my radio all shut off light they should. when i remove the key, i stil get ignition power until i remove a battery cable, or easier, is the single pin plug that gos to the positive connector on the battery. when i hook the battery up again all the dash is turned off like it should be, this tells me it is not the actual ignition where the key goes, but more likely a stuck relay. i just dont understand why it is now happening when the car was perfectly fine when i pulled the old motor. i have checked all the relays that i can find and swapped them to no avail.

im pretty sure that this problem has nothing to do with the engine or the engine haress seeing how it is all unplugged.

i want to start this thing up so bad but dont want a car that cant shut down properly. thanks a lot

240sxrb25 · 11-02-2013, 07:58 AM

heres a few pictures of the car in question along with my built rb car haha.

thanks for any help

photobucket.co

EvoVIII808 · 11-02-2013, 08:31 AM

Have you tried to connect all the harnesses to see what happens?

240sxrb25 · 11-02-2013, 06:21 PM

Yes I have. It does basically the same exact thing.

I just undid the 5 plugs at the fuse box that the harness plugs into. Undid starter and alternator so basically I have no engine teams efi Ecu, no difference.

ATLspeed · 11-02-2013, 06:39 PM

it has to do with the engine harness. Follow this and you have a guaranteed start up

*You will have to jump your fuel pump/wire it up to a relay to come on with the ignition. The 2jz ecu does not control the fuel pump. 2jz's have a ecu that controls the fuel pump.

11-02-2013, 07:49 AM	#1
240sxrb25 Zilvia Junkie Join Date: Aug 2006 Location: omaha, ne Age: 35 Posts: 451 Trader Rating: (2) Feedback Score: 2 reviews	s13 2jz wiring problems please help thanks i have a 1990 s13 that i drove for the last 6 years with a ka24e no problems ever. earlier this year i pulled the engine and trans and sold it and swapped in a 2jz stock twins motor and w58 5 speed. i am having a serisous wiring problem with the chassis itself now and i cant figure it out. the ecu and engine harness as a whole is completely unhooked from the fuse boxes and chassis harness. now, when i turn my key to the ignition spot and turn the key off and take it out the red dummy lights(oil door brake and such)on the bottom right of my cluster stay on. how ever the accessories such as my radio all shut off light they should. when i remove the key, i stil get ignition power until i remove a battery cable, or easier, is the single pin plug that gos to the positive connector on the battery. when i hook the battery up again all the dash is turned off like it should be, this tells me it is not the actual ignition where the key goes, but more likely a stuck relay. i just dont understand why it is now happening when the car was perfectly fine when i pulled the old motor. i have checked all the relays that i can find and swapped them to no avail. im pretty sure that this problem has nothing to do with the engine or the engine haress seeing how it is all unplugged. i want to start this thing up so bad but dont want a car that cant shut down properly. thanks a lot

11-02-2013, 08:31 AM	#3
EvoVIII808 Zilvia Junkie Join Date: Aug 2009 Location: Washington Age: 40 Posts: 588 Trader Rating: (16) Feedback Score: 16 reviews	Have you tried to connect all the harnesses to see what happens? __________________ Check Out My S13 Build

11-02-2013, 06:39 PM	#5
ATLspeed Zilvia Addict Join Date: Jan 2007 Location: Eden, MD, USA Age: 38 Posts: 921 Trader Rating: (14) Rides Gallery: ATLspeed Feedback Score: 14 reviews	it has to do with the engine harness. Follow this and you have a guaranteed start up *You will have to jump your fuel pump/wire it up to a relay to come on with the ignition. The 2jz ecu does not control the fuel pump. 2jz's have a ecu that controls the fuel pump. __________________ 93 s13 Vert - 2jz/cd009 -- parted/sold 95 Supra Turbo

11-02-2013, 07:58 AM	#2
240sxrb25 Zilvia Junkie Join Date: Aug 2006 Location: omaha, ne Age: 35 Posts: 451 Trader Rating: (2) Feedback Score: 2 reviews	heres a few pictures of the car in question along with my built rb car haha. thanks for any help photobucket.co

11-02-2013, 06:21 PM	#4
240sxrb25 Zilvia Junkie Join Date: Aug 2006 Location: omaha, ne Age: 35 Posts: 451 Trader Rating: (2) Feedback Score: 2 reviews	Yes I have. It does basically the same exact thing. I just undid the 5 plugs at the fuse box that the harness plugs into. Undid starter and alternator so basically I have no engine teams efi Ecu, no difference.