I need help. My 95' F-150 4x4 started cutting out real bad to where I had to pull over to the side of the road - the engine would just choke out. I had the computer read and it showed a bad O2 sensor, fuel relay fuse and charcoal filter. I changed the fuel filter, O2 sensor, fuel relay fuse, thermostat, plugs, cap & rotor and air filter and I still have the problem occasionally...not like it was before but it still cuts out about once a week. I don't know what else to do? Any suggestions?

 

Have you tried cleaning the IAC, MAF sensor, possible taking apart your intake manifold, had your fuel pressure from your pump(s) checked, and there could be more. There are some many vacumes and sensors to drive you mad. How many miles, size engine, etc. are we dealing with here?