ok so i have efilive. and i just bought and hooked up my autometer phantom II tach. now my ppr stock are 6.0. and i have my tach set for a 4 cylinder car. the tach says im idling at like 1000-1100rpm. and my efilive says im idling at 875rpm. the autometer is off. is there something i can change to the pcm that would make it read more acurately because its atleast 300rpm off at higher rpms.

thanks,

ryan

i also searched this topic threw 6 pages and found nothing.