Car engine fuel system Mazda 6 (GG)

Fuel system — general information
Mazda 6 cars (GG) equipped with the new L series motors. Features of the L series motors are shown below: The local area network of the CAN controller is used. A...

Intake system — general information
Functions, design and operation of the Mazda6 intake system (GG) with L3, LF and L8 engines same as current 323 FS engine (BJ), except for the following: to improve...

Key Features of Variable Air Duct (VAD) (L3)
Pic. 2.57. Mazda 6 VAD system with L3 engine: 1 - damper of the VAD system; 2 - control solenoid valve of the VAD system; 3 – vacuum chamber of the VAD system; 4 - check...

System Actuator (VAD) (L3)
Pic. 2.58. Actuator of the VAD system: 1 - damper is open; 2 - damper closed; 3 – damper actuator of the VAD system; 4 - rod; 5 - damper of the VAD system; 6 - intake...

System solenoid valve (VAD) (L3)
Pic. 2.59. VAD system solenoid valve: 1 - power on; 2 – power off; 3 - channel A (to the atmosphere); 4 - channel B (to the actuator); 5 - channel C (to intake...

System check valve (VAD) (L3)
Pic. 2.60. VAD check valve: 1 - check valve; 2 - green; 3 - white; 4 - intake manifold; 5 - vacuum chamber of the VAD system check valve (unidirectional) maintains a...

Fuel node — general information
Pic. 2.61. Fuel unit of Mazda 6 car: 1 - fuel tank; 2 - check valve; 3 - block of the fuel pump; 4 - fuel injector; 5 – pulsation damper; 6 - fuel pump relay; 7 -...

Fuel pump unit — general information
Pic. 2.62. Fuel pump: 1 - block of the fuel pump; 2 - fuel gauge sensor Due to the fact that the vehicle uses a system without fuel return to the tank, the fuel pump...

Fuel and exhaust system components
Pic. 2.218. Fuel system and exhaust system components: 1 - air filter cover; 2 - filter element of the air filter; 3 - air filter housing; 4 - resonant chamber; 5 -...

Fuel Leak Check
Disconnect the negative battery cable. Remove the fuel injectors together with the fuel distributor without disconnecting the fuel supply hose. Pic. 2.219. Fuel...

Fuel System Performance Test
Note. If you don't have a special fuel injector tester, run «Fuel leak test», to check if the fuel injector is working. Disconnect the negative battery cable. Remove...

Spray jet test
Pic. 2.222. Normal and not normal fuel injector spray Check the spray pattern of each fuel injector. If the atomization is not correct, replace the fuel injector (pic....