Camshaft Position Sensor problems of the 2008 Nissan Sentra

The contact owns a 2008 Nissan Sentra. The contact stated that the after the ignition key was turned to the start position, the vehicle failed to start without warning. The contact stated that the failure recurred intermittently. An independent mechanic inspected the vehicle and informed that the camshaft sensor needed to be replaced. The vehicle was repaired but the failure recurred. The manufacturer was notified of the failure. The failure mileage was 100,000. The VIN was unavailable.

I pulled out of my driveway in June 2014 and the car stalled at about 15 miles per hour while I was driving and the engine light came on. I drive a Nissan Sentra 2008 that I brought in November 2011 with 32,000 miles on it. I took the car to a Nissan dealership and they stated that it was the camshaft sensor that needed to be replaced and it would cost $500. I had already replace the air sensor in 2013 for $400 at the same dealership when the car had 52,000 miles because the engine light was coming on. I contacted Nissan customer service to explore why at 72,000 miles the car needs the camshaft sensor replace and was this a common occurrence. They did not help; had limited answers and stated that they will contact the dealership in 3 to 5 business days regarding financial assistance and explanation. I decided to get the camshaft sensor replaced somewhere else. However, today the car stalled again and now the engine light is on again. I am returning the car to the mechanic that replaced the camshaft sensor. However, I belief there are more electrical/engine problems with the Nissan Sentra 2008 besides the camshaft sensor that the company is not being forthcoming about and this can put my life and others on the road in danger. Please investigate Nissan because they already did a recall on the Nissan altima from 2006 to 2012 for the same part. Thank you.