I'm running a Dynotune dry kit on my 1999 5.3 Silverado and want to install a Dynotune A/F ratio gauge.Where do I hook up the wire to read the O2 sensor signal?Dynotune said it should be near my ECM.Just wondering which wire?

 

did you buy just the guage or a complete wideband sensor

 

just the gauge that reads off your stock O2 sensors

 

Right now I'm running a dry 75 shot and was looking to try my 100 shot but want to install the gauge to make sure the larger shot doesn't run it to lean.I don't know how much nitrous my injectors and fuel pump can keep up with.