Vehicle MPI/MPFI injection system Audi A6 C4
MPI (Multi-Point-Injection) and MPFI (Multi-Point-Fuel-Injection) injection systems are called multi-point injection systems. They have a combined ignition and injection system with a single control unit. This subsection deals with the injection part of the system.
Specifications of the injection system
Engine code AAN ABC Engine power, kW / hp 128/ 174 110/ 150 injection system MPI MPFI Maximum speed, rpm 6500 6500 Idling speed, rpm 700 – 800 680 – 810 CO...
Engine code AAN ABC Engine power, kW / hp 128/ 174 110/ 150 injection system MPI MPFI Maximum speed, rpm 6500 6500 Idling speed, rpm 700 – 800 680 – 810 CO...
MPI injection system device
MPI injection parts 1. Fuel filter 2. Solenoid valve of activated carbon system 3. Mass air flow meter 4. Oil level indicator 5. Air filter 6. Pre-heating hose...
MPI injection parts 1. Fuel filter 2. Solenoid valve of activated carbon system 3. Mass air flow meter 4. Oil level indicator 5. Air filter 6. Pre-heating hose...
Differences in injection systems
The MPI injection system has a two-piece switchable intake manifold, while the MPFI system has a three-piece non-switchable plastic intake manifold. In...
The MPI injection system has a two-piece switchable intake manifold, while the MPFI system has a three-piece non-switchable plastic intake manifold. In...
Injection sensors
The coolant temperature sensor is screwed into the pipeline through which the coolant circulates from both cylinder heads. This is a resistance thermometer...
The coolant temperature sensor is screwed into the pipeline through which the coolant circulates from both cylinder heads. This is a resistance thermometer...
Idle speed control
LFR valve (Leerlauffullungs-regelung) The fill control system is attached to the intake manifold and regulates the air flow at idle bypassing the throttle....
LFR valve (Leerlauffullungs-regelung) The fill control system is attached to the intake manifold and regulates the air flow at idle bypassing the throttle....
Removal and installation of valve injectors
MPI/MPFI injection system 1. Fuel return line 2. Bolt, 10 Nm 3. Clamp 4. O-ring 5. Pressure regulator 6. Fuel manifold (ring fuel line) 7. Fuel injection line...
MPI/MPFI injection system 1. Fuel return line 2. Bolt, 10 Nm 3. Clamp 4. O-ring 5. Pressure regulator 6. Fuel manifold (ring fuel line) 7. Fuel injection line...
Checking valve injectors
MPI injection connectors A - oxygen sensor regulation, idle switch, mass air flow meter, etc. B - crankshaft speed meter, on-board computer, automatic...
MPI injection connectors A - oxygen sensor regulation, idle switch, mass air flow meter, etc. B - crankshaft speed meter, on-board computer, automatic...
Oxygen sensor
Vacuum pipe connections (6-cylinder engine with a capacity of 174 liters. With.) 1. Brake booster 2. Noise suppressor 3. Mechanical EGR valve 4. Diaphragm...
Vacuum pipe connections (6-cylinder engine with a capacity of 174 liters. With.) 1. Brake booster 2. Noise suppressor 3. Mechanical EGR valve 4. Diaphragm...
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Similar sections of other Audi car models:
Power unit: MPI and MPFI injection system Audi 100 C4 (1990-1994, petrol)
Power unit: MPI and MPFI injection system Audi A4 B5 (1994-2001, petrol)
Power unit: MPI and MPFI injection system Audi 100 C4 (1990-1994, petrol)
Power unit: MPI and MPFI injection system Audi A4 B5 (1994-2001, petrol)
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