Car is stuck in limp mode
I have a 97 mercury tracer that i bought for my daughter and the engine had a
knock to it so i changed the motor and found out the transmission wasnt working
right. Wouldnt shift and stayed in 2nd gear the whole time. After changing the filter
and adding new fluid it still continued to do the same thing. So i bought another
engine and transmission together and installed it just to find out it was still staying
in 2nd gear. So as i studied some online forums to find out that the car may be in
limp mode. So i switched the ECU from a 97 escort with the same motor size and
transmission and put it in the tracer and no change after i left the battery unhooked
for 20 minutes.I used all the sensors from the motor and transmission that i bought
so i didnt use the same ones. What makes this process hard is that i get no codes
so i cant even get a idea what it could be.