Tire pressure senor reading low
Thread Starter
Le Mans Master
Joined: Apr 2007
Posts: 8,228
Likes: 2
From: WLA/WEHO CA
Tire pressure senor reading low
I just mounted my race tires and used my reset tool just like always, however; this time something strange happened. The DIC showed 16lbs on the left front. I measured the tire pressure with my gauge and it was 36lbs. Is this a senor issue or something else. The other 3 tires all read properly. The senor is a little over a year old it has been taken off a couple times. TIA
Burning Brakes
Joined: Aug 2008
Posts: 1,220
Likes: 3
I agree...give it some drive time. I had a couple tires that were pretty low once the really cold mornings rolled around...filled them to the right pressure, but the DIC didn't show it until after I had driven for a while...I was surprised that the pressure wasn't being sampled more frequently
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
I agree...give it some drive time. I had a couple tires that were pretty low once the really cold mornings rolled around...filled them to the right pressure, but the DIC didn't show it until after I had driven for a while...I was surprised that the pressure wasn't being sampled more frequently
When you start driving faster than 20 mph the sensors wake up and start transmitting once per minute (sooner if they detect a large pressure change).
So....yes, if the car has been sitting for a while when you adjust the pressure using your hand held pressure gauge, the DIC may not agree until the sensors wake up after driving for a couple minutes.
Bob
Thread Starter
Le Mans Master
Joined: Apr 2007
Posts: 8,228
Likes: 2
From: WLA/WEHO CA
I thought the same thing, that I needed to drive the car, so I drove it approximately 5 miles and it was over 20mph and it still reads 16lbs. Could the senor be in a coma
or something, I need to wake this **** up I have a HPDE event Saturday and I have no days off to replace it, dunno what I'm going to do at this point. What are my options?
or something, I need to wake this **** up I have a HPDE event Saturday and I have no days off to replace it, dunno what I'm going to do at this point. What are my options?
Thread Starter
Le Mans Master
Joined: Apr 2007
Posts: 8,228
Likes: 2
From: WLA/WEHO CA
I need a quick fix too, one of my rear brake lights just went out. Anyone know what the part number is so I can pick up another at Pep Boys or Kragen?
Cloaked: AFAIK, it doesn't really matter if your sensor is screwed up, you can drive with it all day long even if it is totally screwed up. You just have to reset the TPMS every hour or something, right?
Cloaked: AFAIK, it doesn't really matter if your sensor is screwed up, you can drive with it all day long even if it is totally screwed up. You just have to reset the TPMS every hour or something, right?
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 232
From: SoCal
Marc
Did you try doing the relearn process again ??
Take the car up to speed in Comp Mode (I think thats how you run). If it doesn't give you any warnings about reduced power or speed you should be good to go.
DH
Did you try doing the relearn process again ??
Take the car up to speed in Comp Mode (I think thats how you run). If it doesn't give you any warnings about reduced power or speed you should be good to go.
DH
Thread Starter
Le Mans Master
Joined: Apr 2007
Posts: 8,228
Likes: 2
From: WLA/WEHO CA
OK I will try that but If it gives me the warning message then I'm out. I'm trying to find a place to get a replacement senor but since I work 12hr shifts dunno how I can get this done in time.
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Race Director
Joined: Jan 2005
Posts: 10,924
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From: Daytona Beach FL
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 232
From: SoCal
If it makes you feel any better I have a check engine light and I'm still going
DH
Thread Starter
Le Mans Master
Joined: Apr 2007
Posts: 8,228
Likes: 2
From: WLA/WEHO CA
for a sensor, Not going to happen, so it doesn't look good.