While driving today check engine light came on. p2096

what could this be. i also have a 08 LNF.
mods:
3' catback
3' catted dp
modded stock air box
Tune

 

what down pipe?

I think its a post cataylst symptom too lean code.

 

zzp with hi flo cat. would that mean that my o2 sensor is bad

 

2) rear O2 sensor reading stuck hi or offset (failed sensor or wiring, should be able to see it on logs)
3) rear O2 sensor offset hi/biased (failed sensor or wiring, should be able to see it on logs)
4) rear O2 sensor wiring failed between ECU and sensor signal (fix wiring)
5) rear O2 sensor signal reference offset (failed sensor, replace)
6) air leak in the exhaust near the front O2 or rear O2 is isolated (repair exhaust)
7) ??? not sure how an air leak would cause this, but a borked MAF might
8) high fuel pressure causing rich event
9) failed pressure regulator (see above)

Hmmm exhaust leak or the o2 isnt reading right. What tune are you using? hpt, trif, sc?

 

i am on hpt