Safc Ii Blue Wire Mod

[WogsRus]

"Blue Wire Mod"

This allows you to read Oxygen Sensor Voltage on the AFC display. On the wire harness for the AFC there are three wires that normally not used on an Eclipse. These are White, Yellow and Blue. The Blue wire is meant for the second Air Flow Meter on a Nissan 300ZX. You will connect this wire to the O2 sensor wire right at the ECU. To read the O2 sensor voltage, scroll down to and select the "etc." menu. Select the "Sensor Check". Of the three readings, O2 voltage will be the middle one (#2)

Taken from the Eclipse forum.

Anyone game to try it.

[paulr33]

02 sensor voltage isnt useful, i wouldnt bother

[BOOSTD]

but it would work fine as the operating voltage is inside the normal 0-5v zone. Will tell u if the car is in closed loop and idle mixtures, as paul33r said tho narrow band 02 isn't useful for anything else. ie tunning

[psybic]

Blue Wire Mod

Go here and scroll to the bottom.

States a few little reason why you wouldn't bother.

I guess the point is, its virtually useless, so not many reasons to do it, but there are a few reasons NOT to do it... so I'd stick with NOT.