Went down my P72 ecu pin out, And have had no luck wiring in my 4 wire obd-1 ecu, Could be the Xanax, But...
Now the O2 sensor heat control A6, And D14 O2 Sensor, Given the O2 sensoe has a grn/wht/ and 2 blacks,I figures the white would need to go to the A6, the green going to D14, and take the 2 blacks and attach to the sensor gnds. ( SG1 or SG2 ) D21 and D25?

Am I way off here?
Any help would be greatly apprechited.

Thanks Cole