Mazda 3 Service Manual: Fuel Pump Unit Inspection [Mzr 2.0, Mzr 2.5]
Continuity Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the fuel pump unit connector.
4. Inspect for continuity between fuel pump unit terminals A—E.
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If there is no continuity, replace the fuel pump..
Fuel Pump Control Module Inspection [Skyactiv G 2.0]
1. Perform the KOEO self-test..
2. Verify that a fuel pump control module related DTC is detected..
If DTCs are detected, repair the malfunctioning part according to the applicable
DTC tr ...
Fuel Pump Unit Removal/Installation [Mzr 2.0, Mzr 2.5]
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:
Rear Door Trim Removal/Installation
1. Disconnect the negative battery cable..
2. Move the hook in the direction of arrow shown in the figure using a tape-lapped
flathead screwdriver and detach it from the rear door trim.
CAUTION:
Affix protective tape to the rear door trim and assist handle cover to prevent
damag ...
Engine Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Fuel vapor is hazardous. It can very easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious
injuries or death and damage. Fuel can also irritate skin ...
Positive Crankcase Ventilation (PCV) Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Disconnect the section (A) of the ventilation hose shown in the figure.
2. Start the engine and verify that vacuum is applied to the end of the disconnected
ventilation hose while the engine is idling.
NOTE:
Because it is difficult to directly inspect the PC ...
