why is. p1800 set

Question

What can i do to fix p1800 on a infinity

Answer 1

P1800 VIAS control solenoid open

Before you approach this diagnose, check the charging system, A charging system that is over charging will set this code condition. A good charging system is 2 volts above battery voltage, ,Charging voltage greater than 14.5 volts to 16 volts is too much.