chassis electrical help!!!!!!!!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

lilaznjeff · 02-16-2006, 09:18 AM

i have a 89 base model chassis with a sr20det in the car. one day when i decided that im going to drive this car, i realize that it dont start, i payed more attention to it, notice that im not getting power to my ecu or my dash, so i check the fuse box in the engine bay , fuse was ok, replace the relay, replace it. i realize that i will not start, i tested the fuse slot for the ecu, notice that fuse slot for the ecu is not getting power. i checked the fuse under the driver side and i also check the relay under the driver side, any other possiblity, please help thanks

the head · 02-16-2006, 09:53 AM

sounds like you forgot to hook all of the power leads to the battery there are three the main wire and a 2 cond plug hooked to the side

lilaznjeff · 02-17-2006, 09:36 PM

is there another relay inside the interior, becaues when i put in the keys the radio turns on but, other than that all the interior light does not work. when i try to crank it. i chased the wire from the ecu slot i knowtice that i goes to the relay and there is a wire that attach to it which is brown, i believe it runs to motor harness.
please help

HyperTek · 02-17-2006, 10:09 PM

does ur battery have a full charge? sounds like something minor and thankfully not mechanical... A volt gauge is a good investment for a modded car becuase you would know right away if you where getting power.

lilaznjeff · 02-18-2006, 04:58 PM

i have power going through the battery. i can start the car by putting the wire in to another fuse slot.
the problem is i want to start the with the key, not by popping the hood everytime.

projectRDM · 02-18-2006, 05:20 PM

I've read all three of your posts and I'm still confused. Are you trying to type in a foreign langauge?

lilaznjeff · 02-19-2006, 02:29 AM

ok basically my car starts, it runs, the problem is im not getting power to the ecu, i check the the fuse slot its not getting power in the fuse slot on the passager side engine bay fuse box, the only way i can have power to the ecu is by putting a wire in the fuse slot in to another fuse slot. then i will be able to start the car. if i leave the wire in another slot, the power on the ecu will stay 12v constain.

finesses240 · 02-19-2006, 02:50 AM

did you check your wiring behind the battery location? There is wires behind there that supply power to the ecu. Check those, then go from there.

jdmsilvia909 · 02-19-2006, 07:50 AM

u need a wiring diagram to figure out whats going on here..see if u can find a wiring diagram cause without it u won't know where the power is travling

lilaznjeff · 02-19-2006, 12:33 PM

i knowtice that the slot for the ecu power goes in to the main engine bay harness, i checked driver sides relay box, and replaced it all. does theecu power goes to the driver side kick panel, does anyone have a wiring diagram,
please help thanks

DMC · 03-01-2006, 01:56 PM

Im not sure if this is what your looking for, but i hope it helps.

EDIT: picture wont work, on he fuse box behind the drivers side kick panel, check the fuse that the second up from the bottom right corner.

02-16-2006, 09:18 AM	#1
lilaznjeff Zilvia Addict Join Date: Sep 2003 Location: oakland Age: 41 Posts: 658 Trader Rating: (2) Feedback Score: 2 reviews	chassis electrical help!!!!!!!!!! i have a 89 base model chassis with a sr20det in the car. one day when i decided that im going to drive this car, i realize that it dont start, i payed more attention to it, notice that im not getting power to my ecu or my dash, so i check the fuse box in the engine bay , fuse was ok, replace the relay, replace it. i realize that i will not start, i tested the fuse slot for the ecu, notice that fuse slot for the ecu is not getting power. i checked the fuse under the driver side and i also check the relay under the driver side, any other possiblity, please help thanks

02-16-2006, 09:53 AM	#2
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	sounds like you forgot to hook all of the power leads to the battery there are three the main wire and a 2 cond plug hooked to the side __________________ I never knew you could do that with an eggplant

02-17-2006, 10:09 PM	#4
HyperTek Post Whore! Join Date: Mar 2003 Location: Cali Posts: 13,224 Trader Rating: (3) Feedback Score: 3 reviews	does ur battery have a full charge? sounds like something minor and thankfully not mechanical... A volt gauge is a good investment for a modded car becuase you would know right away if you where getting power. __________________ Keep it Classy

02-18-2006, 05:20 PM	#6
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	I've read all three of your posts and I'm still confused. Are you trying to type in a foreign langauge? __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

02-19-2006, 02:50 AM	#8
finesses240 Zilvia Member Join Date: Feb 2005 Location: San Diego Age: 42 Posts: 279 Trader Rating: (3) Feedback Score: 3 reviews	did you check your wiring behind the battery location? There is wires behind there that supply power to the ecu. Check those, then go from there. __________________ AE86 SR20 mountsRoll Cages (any specification)*Custom Fabrication

02-17-2006, 09:36 PM	#3
lilaznjeff Zilvia Addict Join Date: Sep 2003 Location: oakland Age: 41 Posts: 658 Trader Rating: (2) Feedback Score: 2 reviews	is there another relay inside the interior, becaues when i put in the keys the radio turns on but, other than that all the interior light does not work. when i try to crank it. i chased the wire from the ecu slot i knowtice that i goes to the relay and there is a wire that attach to it which is brown, i believe it runs to motor harness. please help

02-18-2006, 04:58 PM	#5
lilaznjeff Zilvia Addict Join Date: Sep 2003 Location: oakland Age: 41 Posts: 658 Trader Rating: (2) Feedback Score: 2 reviews	i have power going through the battery. i can start the car by putting the wire in to another fuse slot. the problem is i want to start the with the key, not by popping the hood everytime.

02-19-2006, 02:29 AM	#7
lilaznjeff Zilvia Addict Join Date: Sep 2003 Location: oakland Age: 41 Posts: 658 Trader Rating: (2) Feedback Score: 2 reviews	ok basically my car starts, it runs, the problem is im not getting power to the ecu, i check the the fuse slot its not getting power in the fuse slot on the passager side engine bay fuse box, the only way i can have power to the ecu is by putting a wire in the fuse slot in to another fuse slot. then i will be able to start the car. if i leave the wire in another slot, the power on the ecu will stay 12v constain.

02-19-2006, 07:50 AM	#9
jdmsilvia909 Zilvia Member Join Date: Feb 2004 Location: riverside Age: 43 Posts: 188 Trader Rating: (0) Feedback Score: 0 reviews	u need a wiring diagram to figure out whats going on here..see if u can find a wiring diagram cause without it u won't know where the power is travling __________________ Image(s) exceed(s) forum limit, strike 2 -Moderation R.I.P. 1990 NISSAN 240SX...U WILL NOT BE FORGOTTEN

02-19-2006, 12:33 PM	#10
lilaznjeff Zilvia Addict Join Date: Sep 2003 Location: oakland Age: 41 Posts: 658 Trader Rating: (2) Feedback Score: 2 reviews	i knowtice that the slot for the ecu power goes in to the main engine bay harness, i checked driver sides relay box, and replaced it all. does theecu power goes to the driver side kick panel, does anyone have a wiring diagram, please help thanks

03-01-2006, 01:56 PM	#11
DMC Zilvia Addict Join Date: Jan 2003 Location: Chesapeake, Va Posts: 609 Trader Rating: (0) Feedback Score: 0 reviews	Im not sure if this is what your looking for, but i hope it helps. EDIT: picture wont work, on he fuse box behind the drivers side kick panel, check the fuse that the second up from the bottom right corner.