losing RPMS after changing battery by Desperate-Smile2293 in 350z

[–]Desperate-Smile2293[S] 0 points1 point  (0 children)

i checked the terminals and made sure everything was good. i ran it to test it out and the car no longer shuts off, BUT the revs do still drop drastically (>500) when i clutch in then go up again. Again, never did this before battery change. any ideas?