masterofyard
TYF Newbie
I just purchased a 2011 Yukon denali. The check engine light came on and indicated a bad O2 sensor. I took thetruck back to the dealer to repair since it was under the warranty. Now they are telling me besides the O2 sensor coce there is a pending code of p1168 and it will take a while to figure it out. When I checked the codes before bringing it in, I never got the pending code. I checked what the code meant which is a low voltage during oxygen enrichment. Has anyone ever had this proble or heard of it and if possibly, how to fix it. Any help is greatly appreciated.