chevys10ss

My dad an I installed the transgo shift kit in my s10( 4L60e). It went in fine and I ran it through the gears up on jack stands an it shifted like it should. Well I took it out for a test run an again it shifted like it should. Well later that night I went out and on my way home it wouldnt shift out off first gear it seems. So I drove it home I live like 2min form were I was an parked it for the night. I went out in the morning and it shifted for a couple of blocks an then it feels like it drops out of high gear into first and wont shift up. An then I tryed it again 30min later and it shifted fine for probably 10-15 min then I went home and parked it and it was fine. But again it dos not want to shift I dont know whats wrong and anyone with any info please help.

sleeperstyle

iTrader: (4)

any codes? could be something sticking- drop the pan and valve body- inspect it and maybe even give it to somebody that knows to inspect it.

chevys10ss

The code was P1810 TFP valve postion switch circuit