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Rev_D21 »
https://forums.nicoclub.com/rev-d21-u4222.html
Fri Sep 26, 2008 3:05 pm
P0400 is an EGR malfunction. Something within that system set off the code. Testing required.
P1444, EVAP Canister Purge Volume Control Solenoid Valve. Most likely to be the valve attached to the charcoal canister. Since Nissan likes to locate those under the vehicle they take a beating in the elements. I'd test to be sure but 90% sure it's the valve.