2G ECU Wiring

[psi4power]

Im lookin for the wiring diagram on the ecu for my 97 turbo talon, i tryin to find out what wire is the rear o2 so i can hook up my gauge on it

 

[ballagsx]

why do you want to put a gague on the rear o2 sensor?

 

[cwbroncos]

Yeah? Air fuel gauges are pretty much useless (unless you get a wideband or modofied one) and its going to be really useless because all the rear O2 does is tell the ecu that the cats working.

 

[psi4power]

well i have the zeitronix meter that reads the direct voltage off of the o2, but for some reason im not getting a reading.. its not one of those autometer blinky light ones. Also ive been told by many that the rear o2 would be better to tune from

 

[ballagsx]

you need to hook it u p to the first o2 sensor becouse the second just tells the ecu how well the cat is workning. sence the second is after the cat you will not get an acurate reading because the cat woud have altered the ecaust.
just trust us, it goes on the first.