Throttle position sensor works like a rheostat.The farther you push it down,the more current goes through it to tell it to speed up the engine by giving it more fuel.You should see what codes it kicks out and go from there.I dont think your problem is the throttle position sensor.I could be wrong,but either you are going to throw a bunch of parts and money into it,and not fix it,or you can try and see what the codes are and then ask somebody,maybe a Ford mechanic what they say.I wouldnt bet they will be able to give you the right answer,but from experience and trial and error they might have a good idea.I still think its a fuel pump because of your symptoms.If you think about it,a TPS is either going to speed up the engine as you push on the throttle,or not.Thats about all it will do.If it has an EGR valve thats full of carbon and stuck,that would make it run bad.There could be other sensors that are bad.I would think the TPS is the last thing it would be.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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