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Message: [QUOTE="Jessy7.3, post: 1340890, member: 24223"] Also from what I understand the tps (throttle position sensor? Is what I'm assuming) has a built in fail safe for things like this. Because the diesels do not have throttle plates to limit rpm. So the engineers decided they needed a fail safe in the tps. They made it so that both sides of the tps have a 0-12 v signal. However on one side it goes from 0 to 12 and on the other it goes from 12 to 0. And when you push the throttle let's say figuratively that one side will show 2 volts and the other will show 10. And let's say you don't push the throttle one side will show 0 or near 0 and the other side should show 12. At any rate if the tps was bad, and the truck sees that the numbers are no good and don't add up or if there was a dead spot, it would make it so that the truck will only idle. Just my understanding of the tps. Go ahead and replace if you want but if you think about it, say you had a bad spot, and it messed up and said too high of a voltage, your truck would be stuck at that position say it gets stuck at full throttle, the truck would run 100% maximum power. So they have to have that fail safe. Sent from my iPad using Tapatalk [/QUOTE]

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