87 325is o2 sensor

[15Michaeljoseph]

Alrighty guys, I've looked on the web and have been very confused by the info i read. I dont want to spend over a hundred bucks on an OEM o2 sensor, and I read that you can just buy a new sensor and wire it up to the old connector. My only hitch here is that I don't know which sensor to buy. 3 or 4 wires?


--sent from my igloo via carrier penguin

[ST1G]

my 1987 eta has the three wire.

[15Michaeljoseph]

thanks for the response, anyone to second that?


--sent from my igloo via carrier penguin

[Swanny]

Lemme check my 87 i harness....

[Swanny]

Thatd be 4 prongs sir

[ST1G]

Theres your sign.

[15Michaeljoseph]

hahahaha okay


--sent from my igloo via carrier penguin

[nando]

a 325is in the US market will always be 4-wire.

[nickmcc92]

I'm using a ngk ford o2 sensor.

http://www.r3vlimited.com/board/showthread.php?t=256671

[maximus_pr]

NTK Part # 25540 exact fit $70.79 plus shipping rockauto.com

[Swanny]

I think they cost roughly the same at autozone/oriely/advanced if you don't want to wait for shipping.

[F34R]

I'm sorry...just pop the hood and look.