Alright everyone I know Ive seen this happen before but forgot how to fix it. My stock tach needle goes crazy sometimes but the car runs fine. Mostley happens when Im at idel or coming to a stop. I changed the cap and rotor already new plugs and wires, and it still does it. Does anyone know the fix? Thanks guys

 

Help me please!!!

 

Check your speed sensor . That's all I can think of atm. You'll probably get some better answers when it's not 2 in the morning.

 

Cool thanks...