i have a tachometer and i got it hooked up to my pontiac sunbird?

D

Dylan

New member
i hooked to the coil it has an electric coil but when i start the car in revs up to what it should and then the meter starts jumpin but the engine is at a constent idle and when i slowly step on the gas pedal the tachometer drops to the actual rpm reading and when i shift it jumps to
 
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