B16Civic93

what are the white and grey wires for on the plx m300? do you need to hook them up to something or can you just leave them disconnected and it will still work? mine doesnt work but it sounds like something is rattling around inside of it so i think it might be broken. it doesnt light up at all even when the car is started. let me know. thanks

mrbsponge

its for simulating narrowband to the ecu, so you can run the plx all the time and it converts the wide signal to narrow for the ecu

PrecisionH23a

You run the white wire to the stock 02 sensor wire for datalogging capabilities.