rb25det to 300zx z32 oxygen sensor wireing q's

Discuss the RB20, RB25 and RB26 series engines.
captainclutchkick
Posts: 96
Joined: Wed May 24, 2006 11:43 am
Car: 1990 nissan 240sx coupe with rb25det

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ok heres the deal my rb25det oxygen sensor is wasted and i got a 300zx z32 02 sensor from a freind and the pigtail connector plugs into the rb harness ok but the wire colors are different than the rb 02 sensor i removed. the rb sensor has a white wire on the left a black in the center and a white on the right, the 300zx sensor has a black on the left a white in the center and a red on the right. how do i need to wire this to get it to work on my rb25det series 2 engine?

this is the rb25det 02 sensor pig tail ^this is the 300zx 02 sensor pigtail ^this is the 300zx 02 sensor plugged into the rb25 02 harness connector, will this work or do i have to rearange the 300zx wires to make this work like the rb25 02 sensor since the wire colors are different?

rb25 gurus please help a bro out im retarded and need some guidence!



minivan_don
Posts: 316
Joined: Fri Apr 23, 2004 7:29 am

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although i have no experiece with this perticular mod ... i would probably follow the way the wires fit in the harness and the harness will only fit in 1 way.

if your really keen, why not just install the z32 o2 and see if you get an cel or it runs funny... if it does, kill the ignition immediatly.

captainclutchkick
Posts: 96
Joined: Wed May 24, 2006 11:43 am
Car: 1990 nissan 240sx coupe with rb25det

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cmon guys i need some info

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Kansei240sx
Posts: 1356
Joined: Mon Nov 01, 2004 10:17 am
Car: S13 - RB25 Circuit car
71 240z - street/track day car
AE86 - Daily Drizzle/track day car
Z31t - Paper weight/street car
Contact:

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do us a favor and go look it up in the FSM for both cars.

See what you come back with and report it.

http://www.300zx-twinturbo.com/cgi-bin/manual.cgi

and then look at the RB wiring diagram... have at it champ.

jrb92se
Posts: 1352
Joined: Mon Jan 02, 2006 6:09 pm
Car: 1989 Nissan S13 coupe

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why cant anyone just answer his question, he bought a z-32 o2 sensor that is supposed to work with the rb, is it plug and play or does it need to be rewired?

NightKids2
Posts: 231
Joined: Mon Oct 18, 2004 5:25 pm

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Just keep trying different connections until your car doesn't run like shat.

I know thats a stupid idea, but thats what I did lol didn't take 10 minutes to figure it out.

gawdzilla
Posts: 2028
Joined: Sat Sep 18, 2004 11:51 am
Car: none

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here's a hint. you only need to have one wire correct for it to work.

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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or dont make it complex and go buy an o2 sensor for an 1984 200sx turbo...generaly speaking on nissan 3 wire sensors the middle wire is signal, if in doubt take a multimeter and find out which 2 have continuity, thats the heater circut.


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