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Throttle Position Sensor

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***First Post Ever***

Hello all!  I have an 01 WR426. It was missing when I would ride at a steady speed. I tried what seemed like everything to eliminate the miss. 

After reading a post on his sight, I disconnected the TSP and no miss anymore!

Are there any long or short term down sides to keeping it disconnected?  

I thought about installing a waterproof switch under the seat to control the TSP depending upon riding conditions.

Thank all of you for your knowledge!!

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3 hours ago, Krannie McKranface said:

The down side is you will always remain in the closed throttle ignition map, which is mellower than the next two maps.

Is there a way to adjust it?  Does the missing mean the TPS is not working correctly?

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33 minutes ago, Lionamongstmen said:

Is there a way to adjust it?  Does the missing mean the TPS is not working correctly?

Early YZ's, and later WR ignition systems rely on a flawed ECU.

The ECU 'studders' from one map to another at partial throttle positions.

There is no cure for this, other than using an aftermarket ignition ECU, or unplugging the TPS to elminate map changes all together.

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Thank you for the info!!  I will be installing a small water proof switch under the seat. I ride a lot of highway and that is when the studdering really gets to me. Off-road I normally don't even notice it.  The switch will allow me to keep my sanity while commuting. 

 

Thanks again!

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