01 sonoma 5 Trans codes coming on at once wont come out of 2nd gear 4l60e trans

bnyhuis8e

Member
Hello im just looking for some information so im not out freezing my butt off chasing a ghost wire problem i watched a video on youtube by a user name of MAY03LT he had some real help full info but his vehicle was newer then mine. i recently did an engine swap on my truck. before that it sat for nearly 3 years im getting codes p0740 p0753 p0758 p0785 and p1860 they come on all at the same time and the vehicle will not move well and stays in second gear the trans was rebuilt about a year before the engine locked up.. im thinking small rodent chewed some wires or wondering if there is a ground wire i forgot to bolt to the back of the head im about to pull my hair out anyone with any ideas please share
:confused:
 

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