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A friend mounted a 2 gauge pod with Autometer vacuum/boost and air/fuel meters in his C6.
One of the gauges has only one wire for the light hookup. The other has two wires. He can't get the gauge with one wire to illuminate even after grounding it to the engine. Any thoughts? The instructions are of no help.
Also, where does one tap in to a vacuum line for the vacuum gauge and is there an 02 sensor in the engine compartment?
There is an O2 sensor on each exhaust manifold but if you are hooking up a Air/Fuel meter the stock sensors won't work. For a meter you must use a wide band sensor (very expensive) and mount it in the exhaust system.