Anyone have instruction on instalation of Air/Fuel meter?
08-26-2005, 12:59 PM
#2
What car are you putting it on?
The gauge should have a power, ground, and signal wire. Signal wire goes to the pre-cat o2 sensor, and should hook up to the wire that fluctuates between 0 and 1 volts while the engine is idling and warmed up.
If you have a newer car, the o2 sensors will fluctuate between 0 and 3 volts, and your air/fuel gauge won't work, in fact, you'll break it if you hook it up IIRC.
If you have a newer car, the o2 sensors will fluctuate between 0 and 3 volts, and your air/fuel gauge won't work, in fact, you'll break it if you hook it up IIRC.
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