my "service engine soon" light came on while i was driving last night. Pulled the codes this morning it is a 04-13. When I check the ECU diagnostics page, theres no option to select "13"??! Figuring I may have miscounted (unlikely), I put in 04-11 and 04-13 code and it comes up as un undefined. Any idea as to whats happening??
My best guess would be the frankencar that I installed about a 1 1/2 weeks ago but why would a light show up that long after??