Tire Pressure Warning
#1
Racer
Thread Starter
Tire Pressure Warning
I jumped in my 16 991.1 C2Cab yesterday morning and got a dash warning light; -4 tire pressure warning (Right Front). I checked it with my tire pressure gauge, 27psi. I put a few pounds of air in and the dash showed; 8 lbs higher than the other tires. I let a few pounds out, again I got the -4 warning. I put a few pounds in, 8 lbs over again. I repeated this twice trying to hit the "Sweet Spot" in the tire pressure range and was unable to do it. I drove it with the excess 8lbs. Any suggestions?
#2
Rennlist Member
I would check and set all the pressures where they need to be when cold and then do a system reset by toggling between the winter and summer set up in the computer and see if that fixes your problem.
#4
Banned
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 26,141
Likes: 0
Received 5,413 Likes
on
2,516 Posts
And you know for sure the tires does not have a nail, or such, in it?
#5
Racer
Thread Starter
Thanks. I did indeed look for any evidence of a puncture or nail. This morning it still registered 8lbs to high, so I assume there is no leak. My guess is that it's the sensor that's faulty. My tire pressure gauge matched the left front this morning.
#6
Rennlist Member
Did you have the system reset itself via the TPMS menu?
Trending Topics
#8
Rennlist Member
could be the TPMS battery is low ... you can buy a relatively cheap TPMS reader from amazon to check each monitor individually
#9
Racer
Thread Starter
Thanks to you Rennlisters, my Owners Mannuel, a hand held tire pressure guage, and YouTube, I was able to resolve this issue. I appreciate your help. It save me a trip to the dealership.
#11
Racer
Thread Starter
The first thing I did was read all of these posts and helpful ideas. Then I looked for similar threads, which supported the information I got from my post. Then I went to YouTube and searched TPMS, specifically for Porsches. Interestinly there are many other posts with other cars that have similar information. I then verified with a hand held tire pressure guage the info that my screen on the TPMS was reporting, and the numbers matched. I simply addes and subtracted air pressure until I got 28 lbs in the front tires, and 32 in the reat tires because that is what the car had when I picked it up. Additionally, I scrolled through the other screens in the TPMS and learned there are a lot of other tire pressure set ups etc. Again, thank you all for your help and support.