Mazda CX-5 Service & Repair Manual: Miller Cycle Engine
Outline
-
The Miller cycle engine is a high-efficiency engine which achieves high fuel economy performance by obtaining a high-expansion ratio.
-
The Miller cycle engine achieves a high-expansion ratio without increasing its effective compression ratio by retarding the intake air valve close timing.
Operation
1. Intake air is introduced into the cylinder.
2. The intake valve is kept open after the intake stroke is finished to force the air in the cylinder to flow back to the intake pipe.
3. The compression stroke starts from the position in which the intake valve is closed (small compression).
4. The air-fuel mixture is combusted and the piston is pushed down to BDC (large expansion).
Mechanical
Outline
The sliding resistance*1 has been reduced by:
the adoption of a rocker arm (built into needle roller bearing)
reducing load on the valve spring
narrow ...
Non Return Valve Inspection
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or death and facility breakage. Fuel
can also irritate skin ...
Other materials:
Replace Electrical Battery
If the buttons on the transmitter are inoperable and the operation indicator
light does not flash, the battery may be dead.
Replace with a new battery before the transmitter becomes unusable.
CAUTION
● Make sure the battery is installed correctly.
Battery leakage could occur if it is no ...
Power Seat Switch Inspection
WARNING:
Handling a side air bag improperly can accidentally operate (deploy) the
air bag, which may seriously injure you. Read the service warnings/cautions
in the Workshop Manual before handling the front seat (side air bag integrated)..
1. Switch the ignition off (LOCK).
2. ...
Up Switch [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The up switch detects the shift up operation of the selector lever.
The up switch signal is sent to the TCM via CAN and is used for manual shift
control and engine-transaxle integration control.
Construction
The up switch is installed to the selector l ...
