Mazda CX-5 Service & Repair Manual: Manifold Absolute Pressure (Map) Sensor Inspection
Voltage Inspection
1. Connect the M-MDS to the DLC?2.
2. Switch the ignition ON (engine off or on).
3. Verify that the MAP sensor output voltage (PID: MAP) is within the specification..
-
If not as specified, replace the MAP sensor/IAT sensor No.2..
Specification
Intake Manifold
Purpose, Function
Distributes intake air to each cylinder evenly.
Optimizes the combustion efficiency and performance of the engine by distributing
intake air to each cylinder.
...
Manifold Absolute Pressure (Map) Sensor
Purpose/Function
Detects the intake air pressure introduced into the cylinder as basic information
for mainly determining the fuel injection amount.
Detects the intake air pressure i ...
Other materials:
DSC HU/CM Inspection
1. Disconnect the DSC HU/CM connector..
2. Connect the negative battery cable..
3. Attach the tester lead to the DSC HU/CM wiring harness-side connector and
inspect voltage, continuity, or resistance according to the standard (reference)
on the table.
Standard (Reference)
...
Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The PCV valve is open/closed by the intake manifold vacuum.
Construction
The PCV valve is installed to the oil separator.
The PCV valve consists of a spring and valve.
...
Engine Oil Control
Outline
The PCM reduces the oil pump load applied to the engine by controlling the
appropriate engine hydraulic pressure according to the engine operation conditions.
The engine hydraulic pressure switches in two steps. When hydraulic pressure
is not needed, the oil pump dischar ...
