i just swapped an 2001 itr motor into my bro's 2000 gsr and am missin crank angle sensor,knock, and o2 senors if u guys want to know the check engine codes. the problem is when im in fifth gear the car pops out of fifth. its smooth in all other gears and stays in fifth until 60mph everytime. i down shift to 4th and back to 5th and same thing happens. im confused.

 

Did you change the fluid, or check the level? I would try changing it first.

 

ill do that first thing in the mornin