I have a PLX A/F gauge with a narrow-band emulation output.
I don't really have any room for an additional bung in front of the cats on either side.
I want to use the narrow-band output to feed the ECM.
It appears, from the wiring, that it is a differential signal feeding from the sensor to the ECM...
Is it possible to do this?
car is a 2006 Pontiac GTO LS2 E40 ECM
Thanks