Okay so I did my usualy commute of 10miles just before getting on the highway I noticed I'm idling at 50RPM then after getting off the highway I'm idling at 0 RPM, then at the last stop light of my commute the SES light comes on throwing code P0130. How serious? Does this mean a trip to the dealer? Also I am running an ALTA intake, will this affect warranty or if I need to replace sensor, though I think this is more ECU driven? Anyway I did a ECU reset so hopefully this will go away and not be an issue on my way home. I have had the ALTA for little more than a month no issues.

 

P0130 O2 sensor circuit

 

looks like an O2 sensor issue. the intake shouldn't have anything to do with it. As far as being serious, if you're still idling at 50 rpm, that can't be good.

 

NO I was never actually at 50 revs its just what my tach displayed sorry if I wasn't clear, I went back and before I even had the key in the ignition the tach was reading about 500revs with the engine off! which is why I'm suspecting and electrical issue.

That plus a few years ago automatic were throwing this code in the first 1k or so miles on the car but that was fixed with ethier harness replacemnt, ECU replacement or just a sesnsor swap. After a few resets everything seems to have fixed itself, I'll check to see if a warning code is being stored and just not turning on the light, tomarrow.