5STAR3

ok here is my deal....

-i have a 92cx (single wire O2 sensor)
-i have a p74 ecu (92-93 teg, 4 wire O2)
-i have a 99 teg motor

so i go and buy the O2 sensor for the 92-93 integra. i open up the box and it is single wire. im like WTF to i talk to the guy who dropped the motor and he said if they are both single wire go for it.

well it doesnt work, so i need to know...

1) why is my O2 single wire???? did i get the wrong one some how.
2)can i wire this O2 sensor up correctly or do i have to get a new one.

here are the pics.

this is it hooked up:


this is a shot of the O2 connector, see only one wire....


and now last, are these 3 holes where i would wire in the 3 exrta wire when i have to wire up the 4 wire O2??? i did them in red.

5STAR3

bump

fu*kfaceC1EH2

so your motor is obd2 and the ecu is obd1?

5STAR3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fu*kface95hatch &raquo;</TD></TR><TR><TD CLASS="quote">so your motor is obd2 and the ecu is obd1?</TD></TR></TABLE>

yes. but that is not really my prob. maily im wondering are those three holes where i can wire in the new 4 wire O2?

5STAR3

bumpity

VTECVillain

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by envision2teg &raquo;</TD></TR><TR><TD CLASS="quote">1) why is my O2 single wire???? did i get the wrong one some how.</TD></TR></TABLE>

You need to use a 4 wire O2 sensor because your ECU will be looking for that. If you bought a 92-93 Integra O2 and got a single wire then they sold you the wrong one which was no doubt meant for the 90-91 OBD0 Integra.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by envision2teg &raquo;</TD></TR><TR><TD CLASS="quote">2)can i wire this O2 sensor up correctly or do i have to get a new one.</TD></TR></TABLE>

No you MUST use a 4 wire O2 sensor, whether it's OEM or aftermarket.

5STAR3

does some one have a diagram that show how to wire up a 4 wire O2 in a 92-95 cx with a b18b1 and a p74 in it.

I have been searching but it is hard to find it because you can use the term "O2" because it is too short. lol

80884

I have a 92 cx, and i put a 00 b16a in it. You know what a wise man (katman) told me?

96-01 GSR engine harness. Plug and play, no additional wiring. and guess what, it worked! But idk what teg motor you are useing, and yess you need the 4 wire o2 and here is a diagram for the 1 wire to 4 wire conversion, but it's for the p28 ecu.

Again idk if it will work for your b18b1 and p74. But i went with the gsr harness for my obd2 swap but didn't need half the stuff cuz the ecu was obd1. But it was simple. anyway, here is the diagram i used......



Modified by 80884 at 12:39 AM 8/14/2003

80884

This is because at the time my pic is not working...

I got it here https://honda-tech.com/zerothread?id=460744

I e-mailed the pic also, it should be full size in the e-mail.


Modified by 80884 at 12:41 AM 8/14/2003

5STAR3

perfect.

thank you.

80884

anytime, good to see i could help.

Katman

this diagram is a keeper

b20_ed

excellent

-Justin-

hey, im bringin this back to life. does anyone have a pic of the o2 diagram posted above? the link above is dead. if you have it let me know or email it to me whatever. thanks guys

EE_Chris

Hybrid Automotives' O2 conversion article.