Chevrolet Spark manuals

Mazda CX-5 Service & Repair Manual: Fuel Pump Control

Outline

Block Diagram


Operation

Fuel pump relay


Relay ON/OFF

Control conditions

ON

  • When any of the following conditions is met:

    • When ignition is switched ON (for approx. 1 s)

    • During engine cranking

    • While engine is running

OFF

  • When engine is stopped


Fuel pump control module


Output duty ratio

Control conditions

95%

  • When any of the following conditions is met:

    • At engine start

    • Fuel pump control module malfunction (if request voltage is unobtainable)

10—90%

  • Feedback value from fuel pressure sensor is the specified value or more

    (Determined that high pressure fuel pump compression is high.)

  • Except for control conditions with output duty ratio of 5% or 95%

5%

  • When engine is stopped


Fuel pump operation circuit diagram


Fuel Pump Control Module
Purpose, Function Controls the voltage applied to the fuel pump for reducing fuel pump load and improving fuel economy. Controls the voltage applied to the fuel pump based on the con ...

Fuel Pump Unit Disassembly/Assembly
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:

Fuel Injection Control System
Outline Performs optimum fuel injection according to engine operation conditions. The PCM determines the engine operation conditions based on the signals from each input device and drives the fuel injectors at the optimal fuel injection time (fuel injection amount) and the fuel ...

Caliper (Front) Disassembly/Assembly
1. Disassemble in the order indicated in the table. 1 Bleeder cap 2 Bleeder screw 3 Piston (See Piston Disassembly Note.) 4 Dust seal 5 Piston seal ...

Filament Inspection
1. Switch the ignition ON (engine off). 2. Turn the rear window defroster switch on. CAUTION: Directly touching the rear window defroster filament with the lead of the tester could damage it. Wrap aluminum foil around the end of the lead and inspect the filament by touching it ...

© 2016-2019 Copyright www.mcx5.org