Need help with my Navi.
Hey everyone I bought a 99 lincoln navigator a few days ago and im starting to get a check engine light. I pulled the codes and got a 1289 and 1131. I know the 1289 is "Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range" and the 1131 is "Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1"
Has anyone ever had this issue before? Are their any write-ups to learn how to fix this or maybe a downloadable service manual?
any help would be awesome!