Man I have 2 cam codes that want go away, P0342 & P0343. All started when I put in the LS6 cam 550/550 lift 211/204 duration 117.5 LSA. Original cam sensor went out so replaced with new(wasn't even driveable). New sensor drives fine at normal driving until u get on it falls on its face 5000 rpm and up. Also just put a new pig tail plug-in to cam sensor.