986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - How accuracte are the tire pressure monitors?

racer_d · 10-24-2007, 08:03 AM

Depends on the actual system.

One type works of the ABS system. If it notices a wheel rotating at different speeds, it will trigger. So. If all tires are equal, but say, 8 pounds below recommended, you wont have the sendor trigger.

The best kind is the actual mounted on rim wheel sensor that can detect pressure changes. My guess is this one a) costs more money and b) would "go off" so much more frequently that drivers would ignore it.

10-24-2007, 08:03 AM	#3
racer_d Registered User Join Date: Nov 2006 Location: Virginia Posts: 846	Depends on the actual system. One type works of the ABS system. If it notices a wheel rotating at different speeds, it will trigger. So. If all tires are equal, but say, 8 pounds below recommended, you wont have the sendor trigger. The best kind is the actual mounted on rim wheel sensor that can detect pressure changes. My guess is this one a) costs more money and b) would "go off" so much more frequently that drivers would ignore it. __________________ 1976 914 2.0 2000 Boxster 2.7 (sold) 1978 911 SC (sold) 1970 914 w/2056 (sold)