TPMS Woes
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Originally Posted by berlinablackie,Dec 4 2009, 09:48 AM
Not sure if it works in the S2000 (mine is '03 w/o TPMS), but I removed the TPMS sensors out of my 350Z wheels and the dash light does not illuminate. Maybe someone with an S has done this and can validate if it works.
we both are on wheels that are NOT equiped with tire pressure monitors.
both our cars are displaying "TPMS" on the dash.
adjust your tire presures and you'll be ok.
Joined: Dec 2005
Posts: 344
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From: Troy, Michigan
Hey Guys,
I'm a mechanical engineer and design TPMS systems for Chrysler, but not Honda. They're very similar though. There's a sensor incorporated into the valve stem that transmits at specific intervals. This is a NHTSA safety standard that is mandatory on all vehicles starting in 2009+. Some manufacturers have gotten started on TPMS much earlier though, like Chrysler, who's had it since 2005, at least my from company.
When it's colder outside the the air is more dense and the pressure inside the tire drops, even without adding or removing air. It's the same amount of air in the tire, it just takes up less volume, hence less pressure in the tire. The sensors typically can read a pressure with a tolerance of +/- 1psi, so if you were at 32psi it may be between 32-33psi and not trigger the light to come on the dash. +/- 1psi is pretty typical from the different systems that I've benchmarked.
Needless to say, if you're at 26 psi, you simply need to fill your tires with air and bring them back to 32psi, or whatever you usually use. It's really that simple. Under inflated tires are a serious problem as they change vehicle dynamics and the car will not accelerate, handle, or worse, will not brake as optimally as if the tires were pressurized properly. Hope this helps.
Regards,
Christopher
I'm a mechanical engineer and design TPMS systems for Chrysler, but not Honda. They're very similar though. There's a sensor incorporated into the valve stem that transmits at specific intervals. This is a NHTSA safety standard that is mandatory on all vehicles starting in 2009+. Some manufacturers have gotten started on TPMS much earlier though, like Chrysler, who's had it since 2005, at least my from company.
When it's colder outside the the air is more dense and the pressure inside the tire drops, even without adding or removing air. It's the same amount of air in the tire, it just takes up less volume, hence less pressure in the tire. The sensors typically can read a pressure with a tolerance of +/- 1psi, so if you were at 32psi it may be between 32-33psi and not trigger the light to come on the dash. +/- 1psi is pretty typical from the different systems that I've benchmarked.
Needless to say, if you're at 26 psi, you simply need to fill your tires with air and bring them back to 32psi, or whatever you usually use. It's really that simple. Under inflated tires are a serious problem as they change vehicle dynamics and the car will not accelerate, handle, or worse, will not brake as optimally as if the tires were pressurized properly. Hope this helps.
Regards,
Christopher
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Posts: 622
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From: Martinsburg, WV
26.5-27psi is the common threshold to setting the light on im seeing throughout honda/acura models.. its getting colder out here and alot of customers are coming in with tpms lights saying its only when its cold out..case in point..
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