transmission slip or SES EFFECT
 

guys a couple days back i was driving and my SES light came on p0175 system rich etc. so just my luck a Mercedes amg pulls up next to me and than blast off so i try to follow but my truck took forever to down shift and go. i do not recall if the RPMS went up.

now the question was this cause my computer was throwing to much fuel or was it my transmission slipping at 3-4th gear. since then the light went away and i have yet to try it again.