98 Infiniti Qx4 P1105 MAP/BARO switch soleniod valve

[markway]

Hello everyone, I drive a 98 Infiniti Qx4 and I have a serious problem. When attempting to drive the car stalls at 3 RPM's. I had it checked and the code P1105 comes up, it is the MAP/BARO switch solenoid valve. It says that either my MAP/BARO switch solenoid valve is shortned or that the hoses and connectors are faulty. I have checked them all including changing the MAP sensor and still no change. Do you have any ideas? Where can I find a MAP/BARO switch solenoid valve?Thanks!