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  1. where is my tachometer source wire on a non redline

    Performance Modifications
    i have a 2005 saturn ion2 coupe non redline and just got a tachometer for it. i have it all hooked up and thought i had connected it to the right wire on my coil harness but i guess i didnt. it lights up and works when i start the car like it should but it doesnt read the rpm's at all. any...