I’m not sure if I posted this in the right section but here it goes.

b16a
obd1/p72
plx m300 wideband o2

OK, the cel #1 comes on which is indicating a bad o2. I have turned off the o2 heating element. Out of the plx m300 WB I ran the gray (0-1volt) feed to pin d14 on the ecu. Reset everything and its still not reading the o2.

Through the WB display everything reads fine so I know its working.

I have measured the voltage coming off the gray wire and it is correct. Any suggestions?

thanks!