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2 hours ago, JamesS. said:

The 433MHz frequency used by nearly all TPMS sensors is actually 433.92MHz. Most manufacturers refer to it as 433MHz whereas most people would round up to 434MHz. In summary, 433MHz and 434MHz are actually the same. 

That’s all good however as I found after two hours yesterday the programmer my shop has and it’s new would not read the 434 on my Evora 400 but happily read the new 433.

The price of the sensors here is what the uk pays for 4, I get 1.....

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1 hour ago, au-yt said:

The price of the sensors here is what the uk pays for 4, I get 1.....

Do let us know how you get on with the programming tool and the programmable alligator sensor. I did consider buying the programmer but as  the ones I ordered from lotus worked anyway there was no point.

Alligator download shows on https://tools.sensit.biz/download/coveragelist-sens.it-RS_en.pdf that the facelift evora is covered by them.

The software on the pc shows...

image.thumb.png.aa11e6f66f881b1ca965219ac4f72df1.png

 

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Keith, No problem, it will be a while until the programmer arrives,

international mail freight is like it’s being towed by a migrating whale, couriers are better.

I live the best part of two hors from the local dealer s I like to be more self sufficient. 

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53 minutes ago, exeterjeep said:

Evora later workshop manual says 

If a tyre valve/sensor is renewed, or is moved to a different wheel position,
the TPMS will automatically identify the new configuration by interpreting
signal strength as distance from sensor to receiver.
Note that the pressure sensors are powered by integral batteries, with an average service life of 5 years. It is
recommended to renew all pressure sensors at this time interval.

 

The earlier one 2013 ish says 10 years.

 

Mine is an LE which included the Schrader TPMS system developed for the GM Corvette as standard. Handbook says 10 years, Service Notes says 10 years, mine are still working fine after 12 years though my Evora spends about 7 months on wheels with summer tyres and 5 months on wheels with winter tyres so they spend a lot of time in sleep mode. I can't check pressure at ignition on but have to start driving to wake them up.  Just wondering if later ones have cut out the sleep mode so they give a reading at ignition on ..  can anybody confirm?

Phil           Leave me alone I know what to do - I think. 

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Yes, I confirm that TPMS is part of the tech pack. My Launch Edition has it (2009 vintage). I replaced all the TPMS sensors earlier this year when I had new tyres fitted. Due to a shortage of the OEM sensors at the time, the garage tried Herth & Buss HER70699443 sensors, which had been recommended to them by a reliable source, but they were a disaster. They never worked, so OEM sensors went in when they became available.

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Lover of everything Lotus Cars and proud owner of production Evora No.75 (2nd UK customer specced car by VIN). Originally from the Far East....of Anglia, I read black box data for a living so that could explain a lot!

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I could be wrong and happy to be corrected, it seems the 400 onwards is different to the pre 400's it could be that the TPMS monitor is tuned to be specific to 434MHz, as Autel reader which is set for 433MHz wont recognise the frequency. "apparently" the actual frequency is 433.95MHz however just the .95MHz makes all the difference, even the email from the people at Alligator said its just rounded up.. yeah right

From the 400 TPMS service letter

Note: There are different TPMS transmitter and Modules available for Japanese market vehicles, although the
functionality is identical the operational frequency is 315MHz for vehicles imported into Japan as compared to
434MHz for all other markets.

The Sensit.bix https://tools.sensit.biz/download/coveragelist-sens.it-RS_en.pdf  Notes the Alligator

 

TPMS Info.JPG

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As I supected.

https://hethelsport.com/wheels/tpms/

Their info

TPMS Sensors (2010/14 OEM)
HethelSport 180715-03  webcover

for Evora • Evora S cars

Our high-quality Schrader Tire Pressure Monitor System sensors are OEM pieces with the same fit and reliability of the factory Lotus/GM sensors. These fit all 2010~2014 factory 18/19” Evora and 19/20” Evora S wheels as well as our BC Forged wheels. A bit more costly than the off-shore sensors but also a bit more reliable.

Unlike old systems, modern sensor batteries are no longer serviceable so a replacement sensor is recommended every five or so years but replacing them with new tires is the best-bet since the labor to install them is similar to removing-& replacing tires.

Replacement sensors or new wheels/sensors should be recognized by your Evora & Evora S without any special tools or procedures. Just install them and the TPMS control module will find these after a short drive.

These are not compatable with 2016+ Evoras, and at this time, we are still searching for a supplier for the newer cars.

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8 hours ago, au-yt said:

As I supected.

I think your research now is what I went through a year or so ago into tpms, had a couple of chats with a tpms specialist company here in the uk plus contacting autel and alligator. 

eg 

https://tpmswarehouse.co.uk/product/lotus-evora-2018-replacement-tpms-sensor/

Replacement TPMS sensor Lotus Evora N?A

Jun/2017+

OEM Part number – A132G6017F

 

Sorry, this vehicle is not currently supported, if you require this item please call 01254301021 and we can check the latest manufacturer database for updates.

 

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For the Schrader System fitted to pre 2016 Evoras just go back to Page 2 of this thread to save researching.  I bought a set of wheels with winter tyres with one sensor valve completely gummed up with tyre sealant, couldn't get air in or check pressure so had to climb the learning curve and posted my findings and photos of sensor with GM part number (13227143) and date stamp..etc    

Shortly after a couple of guys confirm that the Grandadio (cheap) sensors from Eliseshop also work.

None of that applies to TPMS from 2016 on ...

Phil           Leave me alone I know what to do - I think. 

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The Eliseshop ones do work but in my 2010 Evora, it is not without faults (as you may have read previous in this thread):
1 sensor sometimes not responding, sensor locations being mixed up (front/back swapped or diagonally swapped).
And that is with sensors bought this year.
Would I buy them again from Eliseshop, guess not..

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I have been in touch with the Elise shop and they tell me they have sold a number of sensors to 400 owners and no feedback about issues.

What I find weird is that the Alligator units "apparently" are one of the largest manufacturers of TPMS and yet there hard to source other than OEM suppliers

 

 

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On 05/11/2021 at 12:38, Peters4 said:

The Eliseshop ones do work but in my 2010 Evora, it is not without faults (as you may have read previous in this thread):
1 sensor sometimes not responding, sensor locations being mixed up (front/back swapped or diagonally swapped).
And that is with sensors bought this year.
Would I buy them again from Eliseshop, guess not..

Useful update ...  seems the GM "13227143" are the best bet then.  Put that into Google and it finds them on ebay, amongst other places. ebay has 'New' at £14 each. "Unused" might be better as they appear to have Jan "2010" on the date stamp but so that's younger than the one supplied by Lotus in 2019 that cost me £75....   just hope the 'goes into sleep mode when not moving' is true and they'll wake up from that long sleep without problems..

I notice that the Hethelsport has GM "12825085" on it, so that seems to be an alternative to  "13227143".

Since last post I've been watching how quickly my Schrader TPMS switches on after standing overnight and it's on in about 100m .. it's 500m to the edge of the village and the de-restricted sign when the wiggly bits start so confirms the tyres are 'good to go' well in advance.

hethelsport-sensor 12825085.jpg

Phil           Leave me alone I know what to do - I think. 

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New LOTUS supplied TPMS sender arrived for my 400 and had it fitted not with out a call from the guy who I get to do my tyre work.

I want you to now in your mind a very animated and excited strong French accent , ...”this doesn’t f...ing fit expletive expletive etc it designed for , they sell you the wrong one followed by more expletives...

I go around to the shop and looking at the new valve stem against the original, it has a threaded sleeve inside the new valve stem. 
I borrow a deep socket and do it up .. Queue more expletives..

He has formula three back ground and is very particular about his equipment and his work. but his animation and language in this lightly broken English has me laughing all the way home. 
 

Back  to the TPS After 5 kms of driving the car I’m thinking.. there is something else wrong...then the pressure came up and TPS warning extinguished... phew.

I have an alligator programmer coming and will try a non lotus but genuine alligator TPM sender and program it.

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5 hours ago, au-yt said:

Back  to the TPS After 5 kms of driving the car I’m thinking.. there is something else wrong...then the pressure came up and TPS warning extinguished... phew.

It took a similar distance to recognise one of my new tpms' when fitted, but when I put the old wheel back on it took less time for it to recognise that the old one was back on. I have not tried (yet) putting all 4 of my new wheels with their new tpms' (and the original cup 2 tyres) on the car

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As a thought, I have been wondering with TPMS units if when you first start driving watching which one is the slowest to register as an indication of battery condition.

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