Car fuel injection system Mazda BT-50 1

Fuel injection system — device
Scheme of the fuel system, air intake system and exhaust system. 1 - oxidative neutralizer, 2 - glow plug, 3 - nozzle, 4 - coolant temperature sensor, 5 - crankshaft...

Precautions when working with the fuel system
Attention: Before carrying out any repair work on the fuel system, be sure to disconnect the wire from the negative terminal of the battery. Do not smoke or use open...

Before repair work
1. To relieve pressure in the fuel tank, open the fuel tank filler cap. 2. Disconnect the fuel hose after covering it with a rag. 3. Install a plug in the fuel hose.

After repair work
1. Check all fuel hoses and tubes for cracks or damage. 2. When connecting the fuel hoses, refer to the figure "Location of fuel system components in the engine...

Bleeding air from the fuel system
Attention: if the fuel tank was repaired or other repairs were carried out in which the fuel was completely drained from the fuel tank, as well as if the fuel was...

Removing water from the fuel system
Note: During diesel operation, the fuel filter separates water from diesel fuel to prevent damage to fuel system components "Common Rail". When about 0.13 liters of...

Fuel injection advance angle
The injection advance angle on these engines is controlled automatically by the engine control unit. Check the injection advance angle using a scanner.

High pressure fuel pump — removal and installation
Attention: do not disassemble or repair the injection pump yourself. Repair of high pressure fuel pump should be carried out only in specialized service centers "Bosch",...

Removal and installation of an additional fuel filter (on high-pressure fuel pump)
1. Disconnect the wire from the negative terminal of the battery, 2. Disconnect the fuel hose from the nozzle (1) on the injection pump. 3. Remove the bolt (2). Note:...

Checking the fuel pressure control valve injection pump
1. Disconnect a wire from the negative plug of the storage battery. 2. Disconnect the fuel pressure control valve connector. 3. Using an ohmmeter, measure the resistance...

Checking fuel temperature sensor injection pump
1. Disconnect a wire from the negative plug of the storage battery. 2. Remove the injection pump. 3. Using an ohmmeter, measure the resistance between the sensor leads...

Fuel accumulator
Note: To avoid fuel leaks, do not remove the fuel accumulator pressure sensor and relief valve. When removing and installing the fuel accumulator, follow the assembly...

Nozzles — removal and installation
Attention: Cover all adjacent parts with rags to prevent fuel from getting on them. After removing the high pressure fuel pipes, keep them free of dirt and foreign...

Crankshaft position sensor
Removal and installation Attention: when installing the crankshaft position sensor, make sure that it is thoroughly cleaned of any foreign metal materials, otherwise the...

Camshaft position sensor
Removal and installation Attention: When installing the camshaft position sensor, make sure that it is thoroughly cleaned of any foreign metal materials, otherwise the...

Fuel filter water sensor
1. Disconnect a wire from the negative plug of the storage battery. 2. Follow the procedures in section " Before repair work ". 3. Drain the fuel from the fuel filter....

Mass Air Flow Sensor / Intake Air Temperature Sensor #2
Checking the Mass Air Flow Sensor 1. Set the ignition key to position "ON" (engine off). 2. Connect the scanner to the diagnostic socket and check the signal voltage of...

Intake Air Temperature Sensor #1 / Boost Pressure Sensor
Checking the sensor No. 1 air temperature at the inlet 1. Disconnect a wire from the negative plug of the storage battery. 2. Remove the sensor. 3. Using an ohmmeter,...

Location of sensors and relays
Location of sensors and relays. 1 - engine control unit, 2 - glow plug relay, 3 - main relay, 4 - sensor No. 1 intake air temperature / boost pressure sensor, 5 -...

Coolant temperature sensor
Attention: before carrying out the procedure, make sure that the engine is cool. 1. Disconnect a wire from the negative plug of the storage battery. 2. Drain the coolant...

Accelerator pedal
Removal and installation 1. Disconnect a wire from the negative plug of the storage battery. 2. Remove the vacuum brake booster and hang it aside without disconnecting...

Accelerator pedal position sensor
Examination 1. Check up an accelerator pedal on absence of damages and backlash of details. 2. Check that the accelerator pedal position sensor is installed correctly....

Idling switch
1. Disconnect the idle switch connector. 2. Using an ohmmeter, check the continuity between the switch terminals when changing the position of the stem. The rod is...

Start inhibit switch
Examination 1. Remove the start inhibit switch. 2. Using an ohmmeter, check the continuity of the switch. A) Make sure there is continuity between the terminals when the...

Main relay
1. Disconnect a wire from the negative plug of the storage battery. 2. Remove the main relay. 3. Using an ohmmeter, check the conductivity of the relay. A) Check for...

Clutch pedal switch
Examination 1. Disconnect the switch connector. 2. Using an ohmmeter, check the continuity between the switch terminals by pressing and releasing the stem. The rod is...

Removal and installation of elements of system of recirculation of the fulfilled gases
1. Disconnect a wire from the negative plug of the storage battery. 2. Remove the parts in the sequence shown in the figure below. The location of the components of the...

Exhaust Gas Recirculation System Checks
Checking the EGR Valve Position Sensor 1. Disconnect the sensor connector. 2. Using an ohmmeter, measure the resistance between the terminals "A" And "IN" sensor....

Fuel tank
Removal and installation Caution: Repairing a fuel tank that has not been properly steam cleaned can be hazardous. Tank explosion or fire can cause serious injury or...

The engine control unit
Removal and installation 1. Disconnect a wire from the negative plug of the storage battery. 2. Remove the front side trim. 3. Remove the parts in the order they are...

Diagnostic system
Description The electronic engine control unit has a built-in self-diagnosis system, which continuously monitors the condition of the engine based on sensor signals. The...

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More sections on repairs of other Mazda models
• Power unit: Injection system Mazda Familia 6 (1989-1994)

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