Postby smj999smj » Fri Nov 22, 2013 12:12 pm
You can make your trip. You will not cause any harm to anything. The evaporative emissions system is a system that stores fuel vapors in a charcoal filled canister until they can be sucked into the engine and burned, rather than have them vent directly into the atmosphere.
There is a Nissan TSB for P0443 codes stored in 2008 Pathfinders/Xterras/Frontiers/Maximas. The bulletin involves checking the ECM part number against the chart in the bulletin. If the number matches, then an updated ECM program is available to fix the problem. In most cases, you will need to take your vehicle to a Nissan dealer for the reprogram. ECM reprograms are covered under the long term emissions warranty, usually 7 yr/7000 miles or 8 yr/80000 miles depending on the emissions certification of the vehicle; some dealers will say the ECM reprogram is covered under the 3 yr/36000 mile warranty only, but they are incorrect. Labor guide time to reprogram an ECM is 0.6 hrs. Most will try to soak you for at least an hour.