alvin9872

My bank 1 sensor 1 O2 sensor connector harness wires have pulled out of the plug. I need to find out which wire goes to which pin. Anyone have a wiring diagram for this?

rkw77080

Here you go...

blubly

Hello,
I Have the same Problem on my 04
I connect anything something wrong
to confirm
ox2 on ox1a = blue on sensor this is the black shielded on harness car side
e1 on 01A = white on sensor this is the brown on harness car side

is this so correct ?

i connected it so but sensor reads in techstream always only 0.07V


I connectet it at first wrong maybe i killed my ECU ?

Testet 2 o2 sensors the new one (what i connectet wrong) and the old one!

rkw77080

What you described is correct, but please note that there are 2 black wires on the harness-side (pin 2 and pin 3) - first check to make sure they are in the correct spot.

Are you getting any DTC's (Diagnostic Trouble Codes) like P0031 or P0032? Attached are troubleshooting procedures for the O2 sensors...

blubly

No just got random missfire bank 1

but didnt drive the car, car is still on car lift!


the black one with the shield is the sensor iam right or ?

blubly

SO... now O2 Probe works..

But i get now Error Code for the Heater.. Resistance low but the Probe is OK ~ 15 OHM tested also another Probe!
After Lil driving comes the Code.....

12V I have also at the Plug by the heater wires

any idea ?

Gertwiese

Good day
i have build an LS430 v8 into my tata xenon and its running but as soon as it drop under 2000 rpm it goes in to an limp mode i have tested all the sensors and the ecu it all works and now they tell me to by an new harness is there any where ells i can look for such an problem.

Luat55

please give me electrical diagram of lexus ls430 2004 3uz-fe v8 4.3l . engine

paulf66

My bank 1 sensor 1 O2 sensor connector harness wires have pulled out of the plug. I need to find out which wire goes to which pin.i.e Upper left lower left upper right lower right …. Anyone have a wiring diagram for this?

Dflo500

do you have an image of the stock location on the pins on the plug from the car?

Johnnychau

Hey! I just did this exact thing today and need some help! We're you able to to determine where each of the wire goes into the plug? Omw stuck please help 🙏🙏

Johnnychau

Did you get this resolved? Need help!