06/15/2026
Did the mechanic accidentally cause this, or is it just bad timing?
I have a 2013 Nissan Maxima with about 143,000 miles. I originally brought it in because I had EVAP-related codes (P0456 and P0441), and the V***r Canister Vent Solenoid Valve was replaced.
After the repair, I drove the car home with no issues. The next morning, however, the check engine light came back on. This time the code was P1800 (VIAS Solenoid Valve).
The shop scanned it and noted that they couldn't access the system with their scan tool and suggested it may need dealer-level diagnostics.
My question is: could this new code be related to the work that was just performed, or is it more likely a coincidence that another issue showed up right afterward?
I'm not looking to point fingers—just trying to understand what might have happened and what my next step should be. Any insight from Nissan owners, technicians, or anyone who's dealt with a P1800 code would be greatly appreciated.
Thanks!