i got a sunfire gt 2.4, where do u connect a air/fuel ratio gauge? direct to the o2 sensor or to the pcm, if to the pcm, where. i'm a little confused on the diagram from newyork jbodys,
Mine was just tee'd off the line about halfway between the O2 and PCM (until I hooked up my wideband to it), and grouded by the gauge. Narrowbands are not very accurate so any ground difference won't matter.
i have mine hooked directly to o2 wire between o2 and plug as to not mess up my engines wireing
