My 96 f150 runs rough when I start it until it runs for a few minutes. I had the catalytic converters removed and so had to eliminate a couple sensors. There never seemed to be a problem until recently so I am thinking that removing the sensors may not be the problem. Any suggestions would be appreciated.

 

First, suggest to pull the codes. Make sure your EGR valve and controls are working properly. Make sure your Idle Air Control solenoid valve is clean.