O2 wiring

Discuss the RB20, RB25 and RB26 series engines.
Kevin.A
Posts: 93
Joined: Mon Nov 23, 2009 5:24 pm
Car: Nissan 300zx RB20 swapped
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I just got my RB20 swap up and running. But the engine i bought didn't have an O2 housing, or wires for an O2 sensor. I have a M30 O2 on order, but ism going to try and do the wiring tomorrow, when i wire in a AFC a the same time.

but i can't find a diagram that talks about wire colors or left to right, so i know what wires are power, ground, signal. I got the connector off my old vg30 engine, so the wire colors on the connect may night be correct.

Can anyone help?

ThankKevin A


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Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

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Have you tried the service manual: http://nicoclub.com/FSM, Sorry I couldn't be more help.

Kevin.A
Posts: 93
Joined: Mon Nov 23, 2009 5:24 pm
Car: Nissan 300zx RB20 swapped
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I have, unfortunately it was no help.

Is there anyway to test to see which tires are which?

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

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the signal wire is usually shielded and will either have a different gauge or look obviously different than the other 2 wires. that's the only important one and needs to be your signal wire.

then just give the remaining two one ign 12v and one ground. Polarity doesn't matter it's just the heater element so it will work the same if you reversed it.

Kevin.A
Posts: 93
Joined: Mon Nov 23, 2009 5:24 pm
Car: Nissan 300zx RB20 swapped
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Thanks for the help

I was able to figure it out with your help.

Kevin


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