5 speed swap wiring. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

tak- · 04-09-2005, 01:23 PM

hi, i have a 1989 fb and i am putting a 91 tranny on it. everyone is bolted up fine, and im finishing up. I jumped those 2 wires at the bottom on my fuse box, but I am a little confused about where to hook up my speed sensor.

And after i hook up my speed sensor, can I just get rid of the other 2 plugs going from the fuse box to the tranny?

I think there are 3 connectors,
1 7 prong (holds 8)
1 7 prong (holds 8)
1 3 prong

I am sure one of these probably controls the speed sensor, and another or if not hte same plug, diffrent wire controls the reverse light.

any info would be great, i dunno how much it differs from the DOHC, but i havent found much for the SOHC.

thanks

EchoOfSilence · 04-09-2005, 03:56 PM

woah woah woah.... don't get rid of anything

one is speed sensor, 5th gear sensor, and the other is reverse light.
speed sensor is the plug closest to the gearbox. the others, i'm not too sure about their placement.

*crioten* · 04-09-2005, 06:13 PM

Quote:

Originally Posted by EchoOfSilence

one is speed sensor, 5th gear sensor, and the other is reverse light.

lol, i never bothered to hook up the last two

tak- · 04-09-2005, 08:39 PM

im not pulling any sensors from the tranny. I just unplugged the auto ones, and have 2-3 lower harnesses / wire bundles that go to the old sensors.

I looped the "Parking" wires, but i still have 3 more existing harnesses/plugs coming off the old auto tranny that i dont know what to do with, i assume most of them are just BS that can get thrown out, but i need to figure out what one is speed sensor, and what one is reverse lamps. I dont have a SOHC FSM for a wiing diagram, just a DOHC, and i assume wiring is a little diffrent.

EchoOfSilence · 04-09-2005, 09:08 PM

there should be a clutch cancel swith somewhere too, i just forget where haha

projectRDM · 04-10-2005, 10:13 AM

Speed sensor has it's own 2pin harness. Keep it.

Reverse is in one of the larger plugs, quit being lazy and look it up in the FSM. IIRC it's red.

5th position switch is not needed, period. Neither is neutral position.

And there is no 'clutch cancel switch' on an auto car.

*NemeGuero* · 04-11-2005, 03:03 PM

peep this out
and this but double check FSM for exact wires 'cuz this was done on an s14

http://ka24development.com/cwilfert/...lectrical.html

the only things you need from the auto harness are speed sensor plug, and reverse light sensor. everything else needs new wires run. unless you buy a manual tranny harness

04-09-2005, 01:23 PM	#1
tak- Zilvia Member Join Date: Mar 2004 Location: Tampa, FL Age: 28 Posts: 153 Trader Rating: (0) Feedback Score: 0 reviews	5 speed swap wiring. hi, i have a 1989 fb and i am putting a 91 tranny on it. everyone is bolted up fine, and im finishing up. I jumped those 2 wires at the bottom on my fuse box, but I am a little confused about where to hook up my speed sensor. And after i hook up my speed sensor, can I just get rid of the other 2 plugs going from the fuse box to the tranny? I think there are 3 connectors, 1 7 prong (holds 8) 1 7 prong (holds 8) 1 3 prong I am sure one of these probably controls the speed sensor, and another or if not hte same plug, diffrent wire controls the reverse light. any info would be great, i dunno how much it differs from the DOHC, but i havent found much for the SOHC. thanks

04-10-2005, 10:13 AM	#6
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 39 Posts: 13,863 Trader Rating: (12) Feedback Score: 12 reviews	Speed sensor has it's own 2pin harness. Keep it. Reverse is in one of the larger plugs, quit being lazy and look it up in the FSM. IIRC it's red. 5th position switch is not needed, period. Neither is neutral position. And there is no 'clutch cancel switch' on an auto car. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

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04-09-2005, 03:56 PM	#2
EchoOfSilence Nissanaholic! Join Date: Aug 2003 Location: Los Angeles/Berkeley, CA Posts: 2,235 Trader Rating: (1) Feedback Score: 1 reviews	woah woah woah.... don't get rid of anything one is speed sensor, 5th gear sensor, and the other is reverse light. speed sensor is the plug closest to the gearbox. the others, i'm not too sure about their placement.

04-09-2005, 08:39 PM	#4
tak- Zilvia Member Join Date: Mar 2004 Location: Tampa, FL Age: 28 Posts: 153 Trader Rating: (0) Feedback Score: 0 reviews	im not pulling any sensors from the tranny. I just unplugged the auto ones, and have 2-3 lower harnesses / wire bundles that go to the old sensors. I looped the "Parking" wires, but i still have 3 more existing harnesses/plugs coming off the old auto tranny that i dont know what to do with, i assume most of them are just BS that can get thrown out, but i need to figure out what one is speed sensor, and what one is reverse lamps. I dont have a SOHC FSM for a wiing diagram, just a DOHC, and i assume wiring is a little diffrent.

04-09-2005, 09:08 PM	#5
EchoOfSilence Nissanaholic! Join Date: Aug 2003 Location: Los Angeles/Berkeley, CA Posts: 2,235 Trader Rating: (1) Feedback Score: 1 reviews	there should be a clutch cancel swith somewhere too, i just forget where haha

04-11-2005, 03:03 PM	#7
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 28 Posts: 8,257 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	peep this out and this but double check FSM for exact wires 'cuz this was done on an s14 http://ka24development.com/cwilfert/...lectrical.html the only things you need from the auto harness are speed sensor plug, and reverse light sensor. everything else needs new wires run. unless you buy a manual tranny harness

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