Mazda CX-5 Service & Repair Manual: Valve Mechanism
Outline
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A DOHC type valve system has been adopted and consists of four valves (two intake valves and two exhaust valves) per cylinder for a total of 16 valves operated by two camshafts.
Structural View
Resonance Chamber
Purpose, Function
Pulsation of intake air is controlled and intake air noise is reduced by
adding an intake air passage.
Construction
The resonance chamber is installed to fresh ...
Variable Valve Timing Mechanism
Outline
Achieves optimum valve timing according to the driving conditions by the
variable valve timing mechanism changing the phases of the camshaft.
An electric type variable valve ...
Other materials:
High Pressure Fuel Pump Inspection
NOTE:
The following vacuum values are indicated by relative pressure from the fuel
pressure sensor.
1. Verify that the fuel pressure sensor is normal..
2. Connect the M-MDS to the DLC-2.
3. Switch the ignition ON (engine off).
4. Select the “FUEL_PRES”, “LOAD” and “R ...
Global Positioning System (Gps) Antenna
Purpose, Function
The GPS antenna receives signals sent from GPS satellites and sends them
to the car navigation unit.
NOTE:
GPS (Global Positioning System) was developed by the Pentagon (U.S.A.) as
an object locating system using satellites. The GPS antenna receives signa ...
Air Fuel Ratio (A/F) Sensor Heater Control
Outline
Based on the control of the A/F sensor heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine start is made possible for improved cold temperature exhaust
emission performance.
...
