Question

Prompt that it is necessary to do an error P0455 on my 2005 Infiniti QX56

Answer 1

The P0455 code is sort of a catch all code. Basically, the computer knows there is a leak ion the evap system, but can't figure out where the leak is. There are over 16 different possible problems to cause this code.The best thing to do is have the evap system smoke tested to find the leaking part.

Answer 2

P0455 Infiniti Code - EVAP Control System Gross Leak Detected
Read more: https://www.autocodes.com/p0455_infiniti.html