One problem related to engine clicking and tapping noises has been reported for the 2005 Infiniti G35. The most recently reported issues are listed below.
I bought this car in October 2016 from a place called skyline auto, in ham lake,mn didn't jab no concerns when I bought it. There was no ch3ck engine light or tapping feom the motor. I bought the car go5 'll fluids refilled did regular oil changes wal-mart in pine city, mn within two months after I bought it tje chek engiine light came on so I went to an o'reillys in siren wisconsin codes back for camshaft sensor. I was planning on buying two sensors to be replaced. The check engine light did not stay on all the time. After my last oil change at walmart in Nov. I was on my way home a loud tapping noise coming from the front of the engine I have not after this loud noise occurred I have not drove it far it's been parked since I did loose the keys and fob so I have not been able to look into thos more I'm curious of what is causing this noise.