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To those who have actually calibrated/set their TPS...

The procedure states to 'slowly turn the TPS until the values change'. I'm finding that I can barely turn it an amount small enough between open and when the readings change. I mean, its rediculous and near impossible to move it such a small amount. Is that what others have found as well? Or should there be a greater range of motion between the edge of an open reading and when you start seeing ohm values change?


It is an on/off sort of setting. As I note on my web page, the actual values of throttle opening likely make little different, I mean if you can adjust it to +/-0.01mm go for it. But for the rest of us, I just go for less than 2300ohms when the throttle is closed and when it opens a little bit (0.85mm per the FSM), the reading goes infinite. But whether that "little bit" is 0.80mm or 0.90mm or even 1.00mm probably makes little difference at all. And the value of resistance you measure for "less than 2300 ohms" really doesn't matter either, 100ohms < 500ohms < 1000ohms < 2299ohms < 2300ohms. If it is less than 2300 (or 2.3K) ohms, it is good.

r.c.brown@ieee.org
TruckEditor@tlca.org
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