A/F gauge hookup

[turbizzy]

I know there is very little about this topic here and much too confusing on TF but does anyone have a A/F ratio gauge in their SVO? If so, which freakin wire out of the three (one big black and two smaller white) is the signal wire. I didn't feel like hooking into the ECU so i was just wondering if i could go off of the sensor connector for now.

Also, if it is the black wire, is my gauge supposed to stay on the last green led alllll the way up to the farthest rich led? Its not switching!!! Maybe my o2 sensor has gone bad huh?

izzy

[SVOeric]

as I recall -- it is one of the white wires -- and it is the one that is not "hot"

one of the whites is for "warm-up" which has like +12 volts to it

the other should be the signal wire, the black should be the ground.

but double check that info -- cause I haven't messed with it in a while, and I could be wrong

[DRAGPAK]

A F GAUGE

I hooked up mine right at the ecm solider it to the wire . Ill look up the pin #29 pos #49 ground

[turbizzy]

Got It

OK guys, i figured it out. Anyone ( i dunno if this applies to all year SVOs) who has the o2 sensor that had three wires (2 white, 1 black) the big black one is the signal to the ECU. The black wire is the one you want to hook your A/F gauge to. Of course, you cannot cut or splice into the black or any of these wires on the o2 sensor side of the connector. This will affect the accuracy of the sensor if you know how one works. Either go on the other side of the connector, i think its a green wire or something or you can do like i did (I DO NOT RECOMMEND THIS TO THOSE OF YOU WHO LIKE TO RAPE WIRE CONNECTIONS OR DONT KNOW WHAT YOUR DOING) and hook a wire into the back of the connector (piggyback style).

Izzy