Z28 97

Ok today i picked up my car from the chevy dealership and it got all its work done and now my SES light is on....But I dont think they know its on...they said come back Friday and they are goin to inspect it...I got Y-pipe catback, o2 sensors, and plugs n wires....So they have to get run witha little bit...What should i do....(Also the emissions stuff was off the car and they installed it back on and i got PCM tuned so that that stuff is back in)

Injuneer

They should not have let it out of the shop with the SES light on. Tell them you want it scanned ASAP. There are 50 or so things that could turn the light on. Make them tell you what its for.

Z28 97

i jus bought 2 new rear o2's and 1 of the fronts is bad...