Throttle Position Sensor testing procedure on dash?? - Yamaha FJR Forum : Yamaha FJR Owners Forums
 
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post #1 of 6 (permalink) Old 07-06-2020, 08:41 PM Thread Starter
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Throttle Position Sensor testing procedure on dash??

Anyone know what the procedure is to test the throttle position sensor on your dashboard? i.e. not using an ohm meter.

2006AE
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post #2 of 6 (permalink) Old 07-06-2020, 09:48 PM
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Originally Posted by JerrySuhrstedt View Post
Anyone know what the procedure is to test the throttle position sensor on your dashboard? i.e. not using an ohm meter.

2006AE
Right up 167 from me Jerry ..
I personally know of no way of testing a TPS without a ohmmeter
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post #3 of 6 (permalink) Old 07-06-2020, 10:12 PM
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I know you can do it with diagnostics on a Gen 1. Pretty sure on a Gen2 also. Rayzerman to the white phone.

Carl Griffis
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post #4 of 6 (permalink) Old 07-06-2020, 11:06 PM Thread Starter
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Originally Posted by griffisc View Post
I know you can do it with diagnostics on a Gen 1. Pretty sure on a Gen2 also. Rayzerman to the white phone.
Got it tested via ohm meter as well as using the diagnostic mode. My TPS appears to be fully in spec.
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post #5 of 6 (permalink) Old 07-06-2020, 11:10 PM
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The diagnostics screen shows adjustments and general operation... it can look good there and still be bad.... because TPS's are finicky when they start to act up... check everything else, and if you can narrow it down, just go buy a new one... hard to diagnose properly.

Backprobing is possible, and monitoring while you ride if you like. That would be more likely to reveal issues, if any. If you see any "jumping" of your meter in the lower throttle openings, then time for e new one.

Here's what one looks like inside, ceramic resistor tracks with four little fingers following the track... you'd wonder how they fail (this one was a bad one I did surgery on for a member here). At the right light angle you can see the tracks.....











Ray
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2014 FJR1300A - Root Beer (sold)
2009 CBF1000A - Sienna Red
1999 VFR800Fi - Pearl Shining Yellow
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post #6 of 6 (permalink) Old 07-06-2020, 11:14 PM Thread Starter
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