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[ZeNiTh-PbArM]

hi everyone!

i've been working a lot on my 33 these days...replacing the tank, unclogging the breather, de-rusting the floors, changing carpets, replacing the exhaust (btw i found a great substitution pipe for my catalyst at CSC), repairing my speedo, not to mention the "minor work".
Today i'm working on the O2 sensor (aka lambda sond) and i have troubles guessing the pinout ; i have three wires :
pin A : red
pin B : white
pin C : black
from the wiring diagrams i saw that there should be :
-a ground
-a power supply for the heating element
-a signal wire.
Can anyone tell me which is which?

thanks for your help,
regards,
zp

[zp]

hi

i'm still looking for an answer if anyone has the information...

thanks in advance,
zp

[Marcin]

Hi,

from memory:

A: +12V for the heating element
B: signal form the sensor
C: ground

but I'll have to verify that at home.

Cheers

Marcin

[ZeNiTh-PbArM]

hi!

thanks, i'll replace the sensor since the voltage does not seem to have the proper pattern (no oscillation).

regards,
zp

[zp]

hi everyone

i've been able to check the sensor last weekend.
so, th right pinout is :
-red wire : +12V
-white wire : ground
-black wire : signal

regards,
zp