Thanks Nathan - good to know. I passed 2 years ago, so this was a bit of a surprise, consider that the 1325 has been running great. I'll probably look into the mixture - could be running too lean. Anyone know of a crude method to check if mixture dials are in the right settings? -----Original Message----- From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of valleyrat12 Sent: Thursday, January 19, 2006 8:11 AM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Re: Maybe Catalytic? I am also in CA (Southern) and had the same problem when I brought my car in from Colorado. I kept failing NOx. Things I ended up replacing: Cat (with SpecialT replacement) Tune-up, O2 sensor. I retested after this and STILL failed. I took the car to the guys at DMC in Garden Grove and they had their smog guy run the car. Before they took the car in they re adjusted the fuel mixture to bring it into spec. I ended up passing. In fact, I was told that my car should have passed on the other (3) occasions but the technician who tested it was not getting the wheels up to the proper RPM. In retrospect I don't think that my Cat needed replacement. Nathan 2277 [moderator snip] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/