Morning everyone. I just had this gauge installed yesterday and the shop had a hard time finding a signal from the O2 sensor to hook to the guage. Does anyone here know where to tap into to get a signal to hook the gauge to? This is a narrow band gauge. My Z is an 04 with a January build date. I was told by steve over at Evolution that there were some 04s that did have the wideband sensors but, since mine is so early I doubt it. If anyone could please help me out Id appreciate it. Thanks a bunch. Peace....