Code P2270 O2 Sensor
Thread Starter
Junior Member
Joined: Aug 2012
Posts: 4
Likes: 0
From: Ft. Lauderdale, Fl
Code P2270 O2 Sensor
this last week i replaced my cats and all four 02 sensors but i keep getting my check engine light with code p2270 (02 sensor signal stuck lean- bank 1 sensor 2) what else could it be?? any help would be great
5 Year Member
Joined: Jan 2010
Posts: 84
Likes: 1
From: Deep South Texas
Sorry to jump on an old thread, but I just got this code as well. I just changed out the stock manifolds to pacesetter headers. I can hear an exhaust leak, just wondering if this is the cause for the code.