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Originally Posted by Kidlex01
i know where i can order them but as far as hooking them up how do i do this?
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What year, model, engine size Grand Am?
Generally, the air/fuel gauge will connect to the wires on the front 02 sensor. The output is normally a purple wire that goes to the PCM and you tap in there at the sensor connector. The wiring will need to be run through the firewall if you go this route or you can tap into the right wire at the PCM connectors.
Oil pressure gauges normally connect to the oil pressure sending unit.