P1105 issue please Help

[flash43545]

I have a P1105, Fuel Pressure Solenoid. I have no clue what this is. I just changed the MAP box attached to the air intake (i believe) and the car hesitates. Idle runs normal about 500-700 in park. I notice it hesitates less when fuel is above 1/2 tank octane 89. Any help would be grateful

 

[fosheezy]

P1105 issues

I would check proper connection of sensors.

Also, make sure your air filter is clean and any cold-air intakes are not obstructed.

Read more about MAF here:
http://www.discountautoparts.com/autopages/INFINITI-I30-Mass-Air-Flow-Sensor.html