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The Air/Fuel Ratio Gauge is
essentially a voltmeter that displays the voltage output of an oxygen
sensor in order to determine the richness or leanness of the exhaust
mixture.
Our Air/Fuel Ratio Gauge features four red LEDs (for
lean status), 10 yellow LEDs (stoichiometric), and six green LEDs
(rich). The first LED comes on at .05V, the second at .10V and so on, in
increments of .05V.
The gauge is wired to an oxygen sensor (a device that measures the
presence of oxygen in the exhaust). More oxygen in the exhaust is the
result of a rich mixture. The "perfect" ratio (not rich or lean) of air
and fuel is called the Stoichiometric (STOICH) ratio. Once the STOICH
air/fuel ratio is achieved, the oxygen sensor will be very sensitive
(i.e. accurate). |
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