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Throttle Position Sensor

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02 Jan 2017 17:22 #176184 by Grego
Hi, got the engine light on, code P0120 along with the revs staying momentarily high when changing gear and engine cutting when dipping the clutch so I guess I need a new TPS.
Jim is an 04 M13a , looked on the net and the TPS seems to vary from less than a tenner to over £200, I'm guessing all the TPS is is a variable resistor/potentiometer (?) so the genuine Suzuki one seems a little steep.
Question is, anybody tried the cheapo ones or know of the best place to get one?

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02 Jan 2017 20:57 #176194 by Rhinoman
Replied by Rhinoman on topic Throttle Position Sensor

I'm guessing all the TPS is is a variable resistor/potentiometer (?) so the genuine Suzuki one seems a little steep.


It is but if you look at the specs for most potentiometers you will find that they have quite a limited life, a TPS has to have a much greater durability. A pattern part from a reputable source should be OK.

Some Suzukis and a bunch of motorcycles.

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04 Jan 2017 00:30 #176225 by helijohn
Replied by helijohn on topic Throttle Position Sensor

Question is, anybody tried the cheapo ones or know of the best place to get one?

I got one for my Pinin off eBay and it was fine. It was the rest of the car that was XXXXed.

Do it right - use Hammerite
When the blue light is flashing I am kidding.

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04 Jan 2017 08:12 #176227 by Reloaded
Replied by Reloaded on topic Throttle Position Sensor
I bought a cheapo one from China for about a tenner IIRC- it lasted about six months until it went tits up (same symptoms as yours).
Fortunately, the reason I originally bought it for turned out to be something different - so I just popped the old one back in and all is well.

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04 Jan 2017 22:53 #176245 by Grego
Replied by Grego on topic Throttle Position Sensor
Good info thanks, guess i'll try a cheapo first and see what happens. Only do around 2k a year in it at weekends so reliability's not too important.

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