02-24-2021, 02:59 PM | #1 |
Drives: 2024 Toyota Camry XSE Join Date: Sep 2017
Location: South Texas
Posts: 155
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Safer solution for storing TPMS sensors in trunk
A safer solution comes from being soundly and rightly scorched for using a potentially unsafe method of storing TPMS sensors inside the trunk under pressure. It is about a $13 solution consisting of a $6.99 small wheel and tire from Harbor Freight plus a $3.99 tube of Black RTV Silicone and a $2 valve stem. Convert the tube type rim to tubeless using a liberal amount of RTV between the wheel halves, add a valve stem and locate the TPMS sensors inside the tire. Add RTV to the bead as well.
Update: This didn't work so well. It leaked too much air too quickly. Would go from 35# to 25# in an hour or two. Too much hassle to worry with at the track. No longer an issue with current setup: Drag pack with no sensors at all. If I decide to leave the front stock wheel/s tires on with rear slicks (as in driving car to the track), then the issue could come up again. AND AGAIN, not every Gen 6 reacts the same to this condition. Attached Images
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2016 1SS - Bought: 8/2017 Sold: 12/2023
Last edited by Yosh6; 05-05-2022 at 06:37 AM. |
02-24-2021, 03:30 PM | #2 |
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All that effort.. why not put them in the wheels ?
I like being able to see tire pressure without getting out of the car... game changer.
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02-24-2021, 04:49 PM | #3 | |
Drives: 2024 Toyota Camry XSE Join Date: Sep 2017
Location: South Texas
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Quote:
This is for using drag radials running under 20# of air pressure at the drag strip. If sensors are in the wheels, on this car, the computer thinks tires are going down and puts the car in limp/safe mode. This is to "fool" the computer into thinking pressures are normal.
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2016 1SS - Bought: 8/2017 Sold: 12/2023
Last edited by Yosh6; 05-05-2022 at 06:38 AM. |
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02-24-2021, 05:47 PM | #4 |
Drives: 2016 Camaro 2SS Join Date: Apr 2017
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That's weird. I run TPMS sensors and have the fronts at 42 and the rears at 19. No issues.
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02-24-2021, 10:14 PM | #5 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
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Same here... my car never goes into limp mode over low tire pressure. I do get a light on the dash.
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02-25-2021, 05:12 AM | #6 | |
Drives: 2024 Toyota Camry XSE Join Date: Sep 2017
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Quote:
Yes it is weird. I'm well aware that not all, maybe only a few, Gen 6's do this; mine does. Maybe I just have a weird car. Two more TPMS related issues I have never discussed with anyone. 1. When the battery is disconnected and reconnected, the TPMS's have to be re-learned. Doe's yours? 2. When a new tune is flashed, the TPMS's have to be re-learned. Doe's yours?
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2016 1SS - Bought: 8/2017 Sold: 12/2023
Last edited by Yosh6; 02-25-2021 at 07:02 AM. |
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02-25-2021, 08:58 AM | #7 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
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No and No.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
03-13-2021, 07:02 AM | #8 |
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Nice solution, what about the fronts? Run sensors in the skinnies?
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03-15-2021, 06:13 AM | #9 |
Drives: 2024 Toyota Camry XSE Join Date: Sep 2017
Location: South Texas
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Yes. Since psi is 40lbs +/- in the fronts, no issues there.
I'm not happy with the little wheel/tire solution as of right now. At first it held air overnight. Now, it is leaking down in a few hours. Don't think the wheel is leaking. I suspect the cheap tire is too permeable. This idea sprung from a Discount Tire tech telling me he has seen people put all of the TPMS sensors in a donut spare tire. That may be fine for street rods, but for my purposes (drag racing with weight reduction), that's too much weight to carry. Still think the best solution is out there in a small, tubeless wheel/tire, or maybe, a higher quality tube-type tire. Just haven't found it yet. Car is on jack stands right now waiting on new wheels to arrive. Need to get re-motivated on this project! My excuse is I'm going to try NO SENSORS in any wheels first. If that works there is no need for this. If this car were a daily driver with stock fronts, the need would still be there for trips to the track.
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Last edited by Yosh6; 03-15-2021 at 06:32 AM. |
03-15-2021, 07:53 AM | #10 |
Drives: 2016 Camaro SS Join Date: Sep 2018
Location: Bartlett, TN
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Best way I have seen to do it is using a small piece of PVC pipe with a stem on it. Put the stem on a piece of pipe, close off one end, put the sensors in, close off the other and pump 32 pounds into the pipe and hide it in the trunk somewhere.
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03-15-2021, 11:51 AM | #11 |
Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016
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You can buy one of these for about $100, it emulates a GDS GM diagnostics tool and runs the software in a virtual machine.
You can set the low pressure threshold to whatever you want in GDS2. https://www.vxdiagshop.com/wholesale...i-version.html |
03-15-2021, 12:52 PM | #12 |
Drives: 2024 Toyota Camry XSE Join Date: Sep 2017
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The point of this exercise is to avoid PVC which is not rated for compressed air use. Many consider that dangerous including some tech inspectors.
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03-15-2021, 12:56 PM | #13 | |
Drives: 2024 Toyota Camry XSE Join Date: Sep 2017
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Quote:
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03-18-2021, 09:11 PM | #14 | |
Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016
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Quote:
It will also emulate a Tech2 for older stuff. I have trouble with mine where it will randomly drop out and lose communication whenever I try to do certain tests like cylinder balance or something like that. |
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