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How to test throttle position sensor

Old 06-27-2011
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Join Date: Jan 2011
Location: Sheboygan WI
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Default How to test throttle position sensor

This test was done on a 1990 F150, but this test is very basic and will work on any year any make, any model with a TPS. Symptoms of a bad TPS is stumble or stall, always right about the same place on the throttle.

Click on the image below to start the video.

This here is a graphical display of the signal you want. This is on my oscilloscope.
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