2011 Yukon XL Denali 2wd. CEL was giving a oil pressure sending unit failure which is in line with oil pressure gauge at zero.
Today I removed fuel rail and manifold to replace oil pressure sending unit. While I had the manifold out I replaced o-rings and gaskets. Being the 6.2L engine I could not access the sending unit without removing manifold.
Upon reassembly I now have a flashing CEL and noticable misfire as well as stabilitrak warning and traction control warning.
Any ideas what I may have messed up?
Side note, the oil pressure sending unit and gauge are working again.
Today I removed fuel rail and manifold to replace oil pressure sending unit. While I had the manifold out I replaced o-rings and gaskets. Being the 6.2L engine I could not access the sending unit without removing manifold.
Upon reassembly I now have a flashing CEL and noticable misfire as well as stabilitrak warning and traction control warning.
Any ideas what I may have messed up?
Side note, the oil pressure sending unit and gauge are working again.