I have 2010 SS L99 camaro and from what i have read on here is that when idling a lil bit of shake is normal, But from what i am experiencing it seems like a lil more than shake and a slight irratic idle like it bouncing from 600 to 700 rpm at a stop and i also notice the oil pressure gauge slightly go back and forth from 30 to a lil above 30 when this happens. Driving around normal is fine this is only at idle. Oh and when the car had sat for two days and i started it up again a slight puff of smoke came out the tailpipes?
