Program TMPS sensors

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Gen52SS
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Program TMPS sensors

Post by Gen52SS » Tue Sep 27, 2016 11:40 am

Besides going to the dealer who do you recommend getting tire sensors programmed in my FRS?
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Re: Program TMPS sensors

Post by thrdeye » Tue Sep 27, 2016 12:02 pm

Uh....take em out and save the weight!
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Re: Program TMPS sensors

Post by lcoleman » Tue Sep 27, 2016 12:12 pm

A lot of the better tire shops will have a generic tool that can probably do it. I'd call Fisher, Matlock, Murrel Bros, etc, and see if they can help you.
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Re: Program TMPS sensors

Post by Gen52SS » Tue Sep 27, 2016 12:24 pm

thrdeye wrote:Uh....take em out and save the weight!
Weight. ... :lol2: you're joking right? I'll keep them in and take off 10lbs of body weight and screw the weight for removing TMPS sensors and looking at a idiot light every day :D
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Re: Program TMPS sensors

Post by thrdeye » Tue Sep 27, 2016 12:28 pm

Hey, it's unsprung and rotational mass.

The miata uses some wizardry with the speed sensors in the ABS - nothing in the wheel.
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Re: Program TMPS sensors

Post by 01badz28 » Tue Sep 27, 2016 12:59 pm

Besides, this is how you deal with idiot lights.

http://www.target.com/p/scotch-vinyl-el ... lsrc=aw.ds
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Gen52SS
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Re: Program TMPS sensors

Post by Gen52SS » Tue Sep 27, 2016 1:28 pm

Ryan .....I thought the link would have taken me to duct tape
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Re: Program TMPS sensors

Post by lcoleman » Tue Sep 27, 2016 2:45 pm

thrdeye wrote:Hey, it's unsprung and rotational mass.

The miata uses some wizardry with the speed sensors in the ABS - nothing in the wheel.
Passive systems just use wheel speed. If one wheel is turning faster than the others consistently, it assumes that tire is low and turns the light on. No wizardry, just programming. :)
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Re: Program TMPS sensors

Post by Teufelshund » Thu Sep 29, 2016 10:54 pm

lcoleman wrote:
thrdeye wrote:Hey, it's unsprung and rotational mass.

The miata uses some wizardry with the speed sensors in the ABS - nothing in the wheel.
Passive systems just use wheel speed. If one wheel is turning faster than the others consistently, it assumes that tire is low and turns the light on. No wizardry, just programming. :)
So does the system depend on the other three being correct to know that the fourth is low? Or is there some kind of base calibration?
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Re: Program TMPS sensors

Post by disneyd » Fri Sep 30, 2016 7:10 am

The system on my Mazda3 has a calibration button that you hit if you change the wheel/tire configuration and it remembers the readings. So, no, at least in this case it doesn't depend on a comparison to the others.

It works fairly well. I've played with it and it can detect when one tire gets about 5 psi low. I think it has to be reading a change in wheel rpm for some period of time though, as pushing the car through the twisties doesn't upset it and you know there is quite a bit of change in rolling diameter there.
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Re: Program TMPS sensors

Post by lcoleman » Fri Sep 30, 2016 8:25 am

Yes, every passive system I've come across has a reset button or menu option. +1 for brief changes in speed not triggering the light. I'm assuming it is smart enough to disregard the outer tires going faster than the inner tires in a turn.
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