Mazda CX-5 Service & Repair Manual: Fuel Draining Procedure

Mazda CX-5 Service & Repair Manual / Engine / Fuel / Fuel Draining Procedure

WARNING:

Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can ignite and cause serious injury or death and damage. To prevent this, complete the following inspection with the engine stopped.
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 and eyes. To prevent this, always complete the “Fuel Line Safety Procedure”, while referring to the “BEFORE SERVICE PRECAUTION”.
A person charged with static electricity could cause a fire or explosion, resulting in death or serious injury. Before performing work on the fuel system, discharge static electricity by touching the vehicle body.

CAUTION:

Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting using cloth or soft brush, and make sure that it is free of foreign material.

1. Complete the “BEFORE SERVICE PRECAUTION”..

2. Disconnect the negative battery cable..

3. Disconnect the quick release connector as shown in the figure..

4. Connect a long hose to the disconnected quick release connector and drain the fuel into a container used for collecting gasoline.

5. Drain the fuel from the fuel tank using the following procedure:

Using M-MDS

Connect the negative battery cable..
Connect the M-MDS to the DLC-2.
Using the simulation function “FP”, start the fuel pump..

Without using M-MDS

Remove the fuel pump relay.

CAUTION:
- Short the specified terminals because shorting the wrong terminal of the relay and fuse block may cause malfunctions.
Using a jumper wire, short fuel pump relay terminals C and D in the relay and fuse block.
Connect the negative battery cable and operate the fuel pump..

CAUTION:
- The fuel pump could be damaged if it is operated while there is no fuel in the fuel tank. Verify the amount of fuel being discharged from the hose and stop operation of the fuel pump when essentially no fuel is being discharged.

6. Stop the fuel pump using the following procedure.

Using M-MDS

Using the simulation function “FP”, stop the fuel pump..
Disconnect the negative battery cable..

Without using M-MDS

Remove the jumper wire to stop the fuel pump..
Disconnect the negative battery cable..

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. ...

Fuel Filler Cap Inspection

Leakage Inspection 1. Perform the following tester (evaporative emission system tester (134-01049A)) self-test: NOTE: If the tester does not work correctly during self-test, refer to the ...

Other materials:

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. ...

Oil Pan Removal/Installation
WARNING: Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled. A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall, causing death or serious injury. Never work ...

Seat Weight Sensor Calibration [Two Step Deployment Control System]
CAUTION: If any of the following work is performed, perform the seat weight sensor calibration using the M-MDS. Replacement with a new seat weight sensor Replacement with a new seat weight sensor control module Replacement with new passenger-side seat pa ...