Quote:
Originally Posted by Bmwe5320023.0
I found two extra O2 sensors for pre cat.
Tried swapping, but nothing changes.
The same shadow errors remain
"Short signal to negative"
Not sure if it means anything...
Even if I disconnect the O2 sensor, the error remains.
Maybe it clears itself after however many cycles, I'm not sure. |
It's saying that the signal wire is shorting to ground.
Can you chart the output from O2 real-time?