Possible cause for concern or not?

[THEM3KING]

So about a year ago i purchased a full Rpi GTM Race exhaust which is basically strait piped as you might know. When i bought the exhaust the previous owner told me that i should get a tune for the cold start and so the "Service Engine Soon" light and the Increased Emission warning doesn't come on .(I knew that with a cat-less exhaust the O2 sensors would kick on the lights and warnings). So about a week with the exhaust no warnings or lights come on. After that i get the SES light and increase emissions warning. Since i daily my car i don't really have the time to get a tune so i keep telling my self ill get one next week etc. Here we are a year later and i still haven't gotten a tune and im used to the warning and SES light staying on (after they turned on they never went off for a year) but about a week ago they just turned off randomly and its been about a week with no warnings or lights come on. So my question is should i be concerned that something isn't working properly (O2 sensors maybe?) or something worse? Thanks for the help!

[s85e90]

I wouldn't worry about it. Sometimes (very rarely in my case) I have seen the light come and go from being catless. Even after being illuminated for a while.

[FormulaMMM]

Not much cause for concern. No certainty as to when it will come on. Sometimes a few miles, sometimes a few hundred from what I've heard.

You should get it taken care of though. If you leave the light illuminated you could potentially miss the indication of a real problem.

[gatorfast]

Also FYI getting a tune is easy. Any one of the major vendors will send you the cable and you can upload the software on your own time.

[Dave07997S]

Only issue is if there is another code being kicked you wouldn't know as you are already getting a SES light. If you keep revving the car above 3500rpm and don't baby the car it takes longer for the light to come on.

Dave

[THEM3KING]

thanks for the help guys! Probably will end up getting a tune soon.