What does this gauge do excatly? What are some benafits of having one? and im gettin a A/F Ratio gauge and it says "WORKS ONLY FOR NARROW BAND SENSORS" Will this work on our cars?
The narrowband A/F gauge works with your car. Doesn't really offer any benefits other than a light show.
alright. What about the Vacuum gauge? Like what will this read and what will it let me know about the engine?
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Doesn't really offer any benefits other than a light show.
And lean-out under WOT, but that's about it.
