CEL P2195 ......should I be worried?

[Chriso3030]

I just threw a new CEL last night just driving. I read that it means heated (front) O2 sensor inactive. Did my O2 sensor just go bad because the service light hasn't come back on yet. TTP I'm in serious need of this re-tune ever since I put on that intake lol. I think I may finally actually be running a little too lean. PS I'm looking to get more HP with those parts on..... I say we go a little more aggressive with this next tune! I'm getting bored haha

[TTP Engineering]

We have seen some 4b11t's go lean after intake. Last one was a ralliart. Its a good idea to get the car relooked immediately after intake change.