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Review on Hitachi TPS0006 Throttle Position Sensor by Eric Wohlman

Revainrating 5 out of 5

If you think your transmission is failing, check your TPS

On a 2000 Nissan Xterra. I thought I was having transmission issues, but live data showed that the throttle position sensor was producing no output, so the computer didn't know when to shift into which gear. If you decide to do it yourself, note that you will need to check the voltage to reset it. It's not that hard if you have a gauge and can watch YouTube videos on it, but if you don't, your computer will get incorrect shift and fuel trim data.

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