Hi inhave an 03 nissan fronteer with an evap leak i tried fixing it but now I am out id ideas i have practically changed the entire system by now fron lines, tank, charcoal canister, solenoid, plugs and filler hose i took it in for a smoke test and no smoke can some one help i don't know where to look now
Here is a detailed guide for you. Main thing I would check is make sure your getting enough voltage to the unit and the wiring leading to it if its low on power and when you power it on the vent valve is opening it could be something as simple as a stuck evap vent valve. Hope you get this darn thing figured out!
https://www.youtube.com/watch?v=luKIKBXJyKk
Hi so I just got it scanned today and I got a code p1491
Okay this video has the tech bulletin and is more specific to your vehicle thanks for providing me with the code! Check above for the updated vod