2003 cavalier 60k on engine with auto tranny out of an 04 cavalier that had 60k on it. Throwing p1810 code. Anyone know anything about this code and what I need to do to fix it? Tranny shifts a little hard going from reverse to drive or vice versa. When shifting through gears it shifts a little harder than normal. Almost like the line pressure is a bit high. Kind of feels as if it has a shift kit in it. Is the 04 4t40 compatible with the 03 cavalier PCM and all or is there something else going on here?

Post to enable email replies. Forgot to on original post.