Low tire pressure warning sensor - Page 2 - ZR-1 Net Registry Forums

Rick Gibbons · 01-31-2023

Thanks, everyone. My local Chevrolet dealer offers tire specials, usually in the spring, for a rebate if I use my GM rewards card. I got $140 back on new Michelins for my 2002 Bird last spring. That's the plan for this spring for the ZR-1, reducing from $1140 advertised price. I think I will try to install the new sensor and take a good look at the other 3. If they seem to be in good shape, I'll have all 4 working (first choice.) If any are questionable, or if they damage one or more during installation, I'll yank them all and deal with the warning light. Side bar...my two right wheels have the labels indicating where to break down the tires, the left ones have no labels and show no signs of ever being there. I'm not sure what to tell the tire tech when they start to break them down. Should I guess they are 180 from the valve stem as Goldcylon said and hope for the best?

GOLDCYLON · 01-31-2023

Quote:

Originally Posted by Rick Gibbons

Thanks, everyone. My local Chevrolet dealer offers tire specials, usually in the spring, for a rebate if I use my GM rewards card. I got $140 back on new Michelins for my 2002 Bird last spring. That's the plan for this spring for the ZR-1, reducing from $1140 advertised price. I think I will try to install the new sensor and take a good look at the other 3. If they seem to be in good shape, I'll have all 4 working (first choice.) If any are questionable, or if they damage one or more during installation, I'll yank them all and deal with the warning light. Side bar...my two right wheels have the labels indicating where to break down the tires, the left ones have no labels and show no signs of ever being there. I'm not sure what to tell the tire tech when they start to break them down. Should I guess they are 180 from the valve stem as Goldcylon said and hope for the best?

Tell 'em anyway. I would not take the chance on the techs reading the label. Make sure they know that you know where the sensors are and you have advised them correctly.

Rick Gibbons · 03-27-2023

Quote:

Originally Posted by secondchance

LTPWS sensors in the tire/wheel uses piezoelectric to generate electric charge. I removed mine about 10 years ago when I went to 18? wheels and removed the light bulb behind the warning screen.
With age, plastic has tendency to get brittle and even new might fall apart inside the wheel.

Update on my pressure sensor question.
I discovered the date code on the inside of the tires that were supposedly installed October 2021. They were from 2014, Nitto summer tires. I decided now was the time for something new since I am driving the car about 100 miles per month year round. My local Chevrolet dealer installed a new set of Michelins, currently with a $70 rebate. I can't say enough about my technician, Evan. He let me hang out, making sure the pinch welds were used for lift placement. I showed him the new sensor I had found on ebay and explained the process. He used a small flashlight to look inside each tire until he located the sensor in each wheel (each of which looked perfect). He took great care in removing and installing the new tires. He mentioned how unusual it was for each of the wheel tire combos to take 1/2 ounce of weight or less and reinstalled on the car. He used a torque wrench for the lugs and locking lugs and used a smaller torque wrench for the correct setting for the caps. I couldn't have been happier.
But back to the replacement sensor. You mentioned it didn't need a battery or any maintenance, but I'm still getting the service LTPWS light after a few miles. Should something be "reset" or will the computer eventually "find" the new sensor?

secondchance · 03-27-2023

But back to the replacement sensor. You mentioned it didn't need a battery or any maintenance, but I'm still getting the service LTPWS light after a few miles. Should something be "reset" or will the computer eventually "find" the new sensor?

Most likely, just gone bad from the age. Could be 20 to 30 years old.
Pull the code and it should tell you which one.

XfireZ51 · 03-27-2023

Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure.

secondchance · 03-27-2023

Quote:

Originally Posted by XfireZ51

Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure.

I thought about it. I think there are a few products on eBay that communicates to a smart phone via app. But, quality of some electronic gizmos from China are such, not sure it?s worth the time any money. I have been relying on eyeballing and a mechanical gauge and done ok for 10 plus years.

HAWAIIZR-1 · 03-28-2023

LocoBob where are you?

Sent from my iPhone using ZR-1 Net Registry

GOLDCYLON · 03-28-2023

Quote:

Originally Posted by XfireZ51

Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure.

-=JEFF=- has Dom

XfireZ51 · 03-31-2023

Quote:

Originally Posted by GOLDCYLON

-=JEFF=- has Dom

I?ll ask him at Pizza Night.

GOLDCYLON · 05-02-2023

Locobob went with the pressure sensors that replaced the valve cap and transmitted to a separate receiver if I remember correctly.

01-31-2023	#11
Rick Gibbons Join Date: Oct 2022 Location: North Carolina Posts: 4	Re: Low tire pressure warning sensor Thanks, everyone. My local Chevrolet dealer offers tire specials, usually in the spring, for a rebate if I use my GM rewards card. I got $140 back on new Michelins for my 2002 Bird last spring. That's the plan for this spring for the ZR-1, reducing from $1140 advertised price. I think I will try to install the new sensor and take a good look at the other 3. If they seem to be in good shape, I'll have all 4 working (first choice.) If any are questionable, or if they damage one or more during installation, I'll yank them all and deal with the warning light. Side bar...my two right wheels have the labels indicating where to break down the tires, the left ones have no labels and show no signs of ever being there. I'm not sure what to tell the tire tech when they start to break them down. Should I guess they are 180 from the valve stem as Goldcylon said and hope for the best?

03-27-2023	#14
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,708	Re: Low tire pressure warning sensor But back to the replacement sensor. You mentioned it didn't need a battery or any maintenance, but I'm still getting the service LTPWS light after a few miles. Should something be "reset" or will the computer eventually "find" the new sensor? Most likely, just gone bad from the age. Could be 20 to 30 years old. Pull the code and it should tell you which one.

03-27-2023	#15
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,681	Re: Low tire pressure warning sensor Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

03-28-2023	#17
HAWAIIZR-1 Join Date: May 2010 Location: Japan Posts: 3,556	Re: Low tire pressure warning sensor LocoBob where are you? Sent from my iPhone using ZR-1 Net Registry __________________ Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048

05-02-2023	#20
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	Re: Low tire pressure warning sensor Locobob went with the pressure sensors that replaced the valve cap and transmitted to a separate receiver if I remember correctly. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V