First of all I have a 96 chevy impala ss and when I bought it the dash wasn't working when you start the car up the lights flicker like cop lights until you udjust the dimmer on the panel but then the gauges quit working, had a local mechanic look at it and he couldn't narrow it down but he says it not grounding out some where he check all of the usual places and nothing. Now I have another problem the car is not responding like it should it sputters and quits and fires right back up went to Auto zone to scam it came back with o2 censor bad and two other circuits bad if anyone has had these problems your assistance will be greatly welcomed:bump::bump::bump: