O2 Signal Input....where?

[spacemonkey]

Installing PLX M-300 Wideband. Im using it to replace the stock O2 sensor with wideband.

http://www.plxdevices.com/AppNotes/PLXApp004/ConnectionDiagram.jpg

Where would I tap into the O2 sensor input? ECU? If so which PIN is it?

Any Suggestions on the 20 OHN 10 watt resistor that PLX says must be added between O2 heater power and O2 heater GND?

instruction:

Install the 20 Ohm, 10 Watt load resistor to prevent the engine check error code. This allows your ECU to "think" that your stock narrowband sensor is still being heated. This resistor can be obtained from your local radio shack or electronics store. If 20 Ohms is not available, two 10 Ohm, 10 Watt resistors connected in series (not parallel) will also work.

so I guess this is a mill eliminator to prevent a CEL?

[pdhaudio83]

how many volts is it? it is NOT a good idea to replace your stock sensor with a wideband... who knows, *maybe* it will work, but I would advise against that.

[BlkZoomZoom]

Personally I would just weld a different bung on and keep the stock sensor.

[pdhaudio83]

^^agreed.

[spacemonkey]

PLX has narrow band and wideband out put

SHould work

Narrow Band is 0.5V (0-1V) out put (grey wire).

Wideband output will be wired into my Profec E-01 for dataloging. Wideband voltage output is (0-5V)

Thats the only reason why I choose this unit over Innovate LM-1 is because I wouldnt need to weld an extra BUNG.

My guess it converts WB signals into NArrowband jsut for the ECU...so it can replace one sensor. Company claims OBDII compatable.



Install the noise filtering capacitor across Chassis GND and O2 Signal Input as close as possible to the ECU. This eliminates unwanted electrical noise and increases close loop ECU performance. This capacitor is not illustrated below. See installation instructions for more information.

[spacemonkey]

nevermind the mil/cel fix...I know how to get that.

Jsut need a O2 signal input for the front O2.

Pin #60?

http://www.mazdaspd.com/resources/msppinout1.html