Mazda CX-5 Service & Repair Manual: Vacuum Line Inspection
1. Remove the vacuum hose..
2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the vacuum pump side, and that air cannot be blown in the opposite direction.
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If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.
Vacuum Hose Removal/Installation
1. Pinch open the clamp using pliers and disconnect the vacuum hose.
2. Pinch open the clamp using pliers and disconnect the vacuum hose.
3. Remove the vacuum hose.
4. Install in the rev ...
Vacuum Pump Inspection
1. Pinch open the clamp using pliers and disconnect the vacuum hose from the
vacuum pump..
2. Install the vacuum gauge as shown in the figure, then check the vacuum.
3. Warn up the engine. ...
Other materials:
Fuel Injector Inspection
Resistance Inspection
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Disconnect the fuel injector connector.
4. Inspect the resistance between fuel injector terminals A and B.
Fuel injector resistance
1.74—2.04 ohms [20 °C {68 °F}]
...
Fuel Distributor
Purpose, Function
Distributes fuel pumped from the high pressure fuel pump to each fuel injector.
Construction
The fuel distributor is installed to the cylinder head.
The fuel distributor is integrated with the fuel pressure sensor.
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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.
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