Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
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Prevents release of blow-by gas (unburnt gas) into the atmosphere.
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The PCV valve is open/closed by the intake manifold vacuum.
Construction
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The PCV valve is installed to the oil separator.
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The PCV valve consists of a spring and valve.
Operation
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When the valve is pulled by the intake manifold vacuum, blow-by gas flows to the intake manifold.
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Blow-by gas flow amount is adjusted by the spring according to the intake manifold vacuum.
Positive Crankcase Ventilation (PCV) Valve Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the intake manifold..
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
1
...
Purge Solenoid Valve Inspection
Airflow Inspection
1. Disconnect the negative battery cable..
2. Remove the purge solenoid valve..
3. Inspect airflow between the ports under the following conditions.
...
Other materials:
Drive By Wire Control
Outline
Calculates the optimum target throttle valve opening angle at all engine
speeds and controls the throttle valve actuator.
The drive-by-wire control is composed of the idle air control, accelerator
control, traction control, excess engine speed control, overspeed control, ...
Key Cylinder Switch
Purpose
The switch turns on/off in conjunction with the front door key cylinder lock/unlock
and the rear body control module (RBCM) detects the key cylinder operation condition
by the change in the voltage.
Function
The key cylinder switch contact point changes in conjuncti ...
Front Side Frame (Partial Cutting) Removal [Panel Replacement]
Symbol Mark
Removal Procedure
1. Drill the 4 locations indicated by (A) shown in the figure, then remove suspension
mounting reinforcement and outer frame reinforcement.
2. Rough cut location indicated by (B) shown in the figure.
3. Drill the 6 locations indicated by (C) shown in the fig ...
