SERVICE INFORMATION If one or more of these EVAP leak DTCs are stored (P0442, P0455, P0456) on a 2007 through 2011 Nissan vehicle, a loose fuel fill cap may be the cause. Use the following resources to perform diagnostics and confirm the cause of stored DTCs. ASIST: - Appropriate Service Manual diagnostic procedures - Applicable Technical Service Bulletins (TSB). Leak Test: - With CONSULT-III plus - WORK SUPPORT >> EVAP SYSTEM CLOSE. NOTE: Use Essential Tool J-42909 or equivalent to pressurize the EVAP system. - With a "Smoke" leak detection machine. Refer to the machine's Operator's Manual for proper use. Make sure the customer is informed of the proper fuel filler cap installation.
