October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Possible Causes
HO2S disconnected.
HO2S to ECM variable current circuit fault (HO2S pin No. 3).
ECM to HO2S constant current circuit fault (HO2S pin No. 4).