That is ok. Since the motor is under no load there will not be any detonation when it leans out. It improves the fuel economy slightly. This is only my understanding of it. I am sure Indy can explain it better or tell me I'm wrong, lol.

 

Wait to see if Indy can find his schematics. I will go grab my service manual out of my truck later and see if I can figure out what wire is the output.

 

Mine installed like this:

I spliced into the wire loom just outside of the PCM instead of down by the o2 sensor (same wires, just shorter distance and easier access). For my '99, I installed it using the following wires.

On the right side PCM plug (when looking at it as you face the firewall), I connected the brown wire of my A/F meter (O2 sensor signal ground) to the black with light blue tracer, and the orange of my A/F meter (O2 sensor output) to the tan with white tracer. These both came off of the same plug on the PCM. Then there was a black wire from my a/f meter that went to a ground, and a red wire that goes to a switched ignition hot wire (so that it is only powered when you have the key on). Lastly, the white wire from my a/f meter spliced into the dash lights so that it would dim when the lights are on. Not sure if your particular a/f meter's wires will be the same or not, but hope this helps some. Use solder connections.

Also, when you get it all hooked up, make sure to give it several minutes. I thought mine wasn't working because it just sat on rich for several minutes. Then it finally started to dither. This is because the PCM was in open loop mode when I first started the truck. Once it changed over to close loop mode, I started to see what I was looking for.

 

my gauge has red for power black for ground and voilet for the sensor but i finally got a hold of a member of my family that works at dodge and the service manger said its the black wire with the green dots coming out of the o2 sensor thanks guys for the help i will update with the results

 

Glad you found out what to tap. When I sold the smt6 gave my install instructions with it, still havent found the rough draft I wrote out. (puter area bit of a mess lol)

As mentioned its normal to see lean when you let off for the reasons stated

 

well now its lean all the time unless it goes wot then its rich is it abad o2 sensor

 

What exactly are you seeing under what conditions?
What motor, anything done for performance?
Unless you have an SCT tuner, piggyback or stand alone, adding just about anything will have you running leaner.

Stoichiometric is perfect chemicaly balanced combustion. Use to happen at 14.7:1 a/f ratio. With some of the newer additives & ethanol, could be bit lower depending on the gas.
Stock pcm should keep you in the 14.0-14.5 range under light eng load when cruising.
From my understanding pcm will only add up to 2-3% increase in fuel which is next to nothing. Adding mods will cause mtr to run leaner & leaner the more power you make.
WOT NA, should see 13.3 (suspect it would ping) or preferably richer. NA, I shoot for 12.5-12.8, thats max power rich to lean(depending on oct/fuel).

 

i have the 360 complete stock except for k&n filter

 

indy you should post more

 

How and where (wire wise) did you hook it up? I think you might have it hooked up wrong.