B1S1 oxygen sensor issues. (Sorry for the x-post)
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4th Gear
Joined: Aug 2012
Posts: 305
Likes: 1
From: graniteville, VT
B1S1 oxygen sensor issues. (Sorry for the x-post)
I got a code for my wifes 2010 justa (199000 miles, first replacment!) for the B1S1 oxygen sensor. I ordered one and installed it.
Code gone... Next day CEL comes back on. I grab my dongle and its now P0420! I replaced the cat/manifold about 40k ago.
I head to graphing in torque, and the sensor isnt reading at all. Im assuming that its that way until up to temp, so i go on a 20 min drive, still no voltage, its using the assumed maps.
I head to newtis.info and check wiring diagrams, as there are 6 wires, and the original code was for "oxygen sensor pump failure(??)". The wiring diagram does not explain what wire does what. There are 2 yellow, 2 white, one orange and one black.
Can someone help me out with wire assignments so i can check voltages?
I would like to know if i have a bad out of the box sensor, or wiring issue. Or is there a fuse for the oxygen sensors? B1S2 varies up and down with normal graphed voltages.
Id love to hit 300k with it. My 04 x3 is at 202k
Code gone... Next day CEL comes back on. I grab my dongle and its now P0420! I replaced the cat/manifold about 40k ago.
I head to graphing in torque, and the sensor isnt reading at all. Im assuming that its that way until up to temp, so i go on a 20 min drive, still no voltage, its using the assumed maps.
I head to newtis.info and check wiring diagrams, as there are 6 wires, and the original code was for "oxygen sensor pump failure(??)". The wiring diagram does not explain what wire does what. There are 2 yellow, 2 white, one orange and one black.
Can someone help me out with wire assignments so i can check voltages?
I would like to know if i have a bad out of the box sensor, or wiring issue. Or is there a fuse for the oxygen sensors? B1S2 varies up and down with normal graphed voltages.
Id love to hit 300k with it. My 04 x3 is at 202k
Does that help? : https://www.northamericanmotoring.co...r-voltage.html
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Thread Starter
|
4th Gear
Joined: Aug 2012
Posts: 305
Likes: 1
From: graniteville, VT
No, i have the theroy and voltages from working on other cars, but what specific wires to probe is what i need to see if i have voltage at the harness, or no, leading to a wiring chafing or a bad out of box sensor
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