Hey guys, I just swapped out my hooker resonator for a longer cherry bomb one to quiet it down. Little did I know but the cherry bomb is still loud as hell lol. I commute 60 miles a day to work and the noise gets to me sometimes.So as I was driving around testing out the new part,I got this weird 02 code P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)---- as I was driving back to college. What the hell does that mean? Did the sensor fall out or something? It looks like its plugged in by the cat, but maybe it slipped out just a hair so I cant see. I wont be able to tell until i put her back on my lift, and thats not till another week. So i erased the code cuz i hate that effing light, but I am wondering what this code means? Thanks guys

Ryan

 

the code means there is not enough responce from the rear O2 sensor. this is common with High flow cat's. as long as everything is pluged in right, it is the cat that is causing the light. your best bet is to get a O2 sim and not worry about it again. the rear O2 is just there to check efficency of the Cat nothing more

 

this happened well after I had replaced the cat, but sprung up because I took the resonator off. I think i may have popped the o2 sensor out, but im at college so i cant get under the car. Ill let aya know how it went, thanks!