In this video we see what engines Codes P0021 AND P0054 ARE ALL ABOUT. 2008 Infiniti G37 and all VQ37HVR ENGINES. Click these links for both gaskets http://amzn.to/2nMTn7j http://amzn.to/2nvBVBG. if you go to a dealer they lie to you and tell you that the entire rear timing chain cover needs replaced because the gaskets are […]