P1105 NISSAN Possible Causes
- Faulty Manifold Absolute Pressure Switch Solenoid Valve
- Manifold Absolute Pressure Switch Solenoid Valve harness is open or shorted
- Faulty Manifold Absolute Pressure Switch Solenoid Valve electrical circuit connector
- Faulty Engine Control Module (ECM)
How to Fix P1105 NISSAN Code?
Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is the Code Detected?
Excessively low or high sensor voltage is sent to the Engine Control Module (ECM)
Possible Symptoms
Check Engine Light On (or Service Engine Soon Warning Light)
Engine Irregular Idle
Engine Hesitation
P1105 NISSAN Meaning
The Manifold Absolute Pressure (MAP) sensor provides instant manifold pressure information to the engine’s Engine Control Module (ECM). The data is used to calculate air density and determine the engine’s mass air flow rate, which in turn determines the required fuel delivery for optimal combustion. A fuel-injected engine may also use a Mass Air Flow (MAF) sensor to detect intake air flow. A typical configuration uses one or the other, but rarely both. The MAP/BARO Switch Solenoid Valve switches the air flow passage based on the voltage signal sent by the ECM.
In some Nissan vehicles, the absolute pressure sensor is integrated into the ECM.