I had a similar problem with my 93 f-150 4.9 (6).. I found out it was the tps (throttle position sensor)..now my 95 5.0 is having some very similar problems that include stalling out..poor acceleration (on hills I had to shift into 2nd to get anything out of it), and the check light is always on. I used to know how to check codes on the 93 without a code reader does anyone know how to do it on a 95?

 

You should get the codes same way as your other truck. Go to fordfuelinjection.com for instructions.