A faulty fuel damper can produce a ticking noise, which can be heard inside the cabin when the engine is idling. Replacement of the failed dampener should correct this problem.Google+
Car Problem Reports
Nissan 350Z Faulty Fuel Damper May Cause Ticking Noise
Nissan 350Z Problem
Average Mileage: 77,618 mi (50,000 mi - 100,500 mi)
Visitor, 2005 Nissan 350Z, 50,000 mi
air bag warning light constantly turning back on, ticking heard inside cabin from possible faulty fuel damper.
Visitor, 2003 Nissan 350Z, 95,600 mi
ticking coming from engine compartment
Visitor, 2004 Nissan 350Z, 64,375 mi
a tiking noise that sounds like lifters..