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.
Technical characteristics of the injection system
Engine letter designation AAN ABC Engine power, kW/hp. 128/ 174 110/ 150 Injection system MPI MPFI Maximum rotation speed, rpm 6500 6500 Speed at idle speed,...
Engine letter designation AAN ABC Engine power, kW/hp. 128/ 174 110/ 150 Injection system MPI MPFI Maximum rotation speed, rpm 6500 6500 Speed at idle speed,...
MPI injection system device
MPI injection system parts 1. Fuel filter 2. Solenoid valve of the activated carbon system 3. Air mass flow meter 4. Oil level indicator 5. Air filter 6....
MPI injection system parts 1. Fuel filter 2. Solenoid valve of the activated carbon system 3. Air mass flow meter 4. Oil level indicator 5. Air filter 6....
Differences in injection systems
The MPI injection system has a switchable, two-piece intake manifold, while the MPFI system has a non-switchable, three-piece plastic intake manifold. In...
The MPI injection system has a switchable, two-piece intake manifold, while the MPFI system has a non-switchable, three-piece plastic intake manifold. In...
Injection system sensors
The coolant temperature sensor is screwed into the pipe through which the coolant circulates from both cylinder heads. In this case, we are talking about a...
The coolant temperature sensor is screwed into the pipe through which the coolant circulates from both cylinder heads. In this case, we are talking about a...
Idle speed control
LFR valve (Leerlauffullungs-regelung) the LFR valve is attached to the intake manifold and regulates the air flow during idle operation, bypassing the throttle...
LFR valve (Leerlauffullungs-regelung) the LFR valve is attached to the intake manifold and regulates the air flow during idle operation, bypassing the throttle...
Removal and installation valve injectors
MPI/MPFI injection system 1. Return fuel line 2. Bolt, 10 Nm 3. Tightening clamp 4. Sealing ring 5. Pressure regulator 6. Fuel manifold (ring fuel line) 7....
MPI/MPFI injection system 1. Return fuel line 2. Bolt, 10 Nm 3. Tightening clamp 4. Sealing ring 5. Pressure regulator 6. Fuel manifold (ring fuel line) 7....
Checking the valve injectors
MPI injection system plugs A - oxygen sensor regulation, idle switch, air mass meter, etc. B - crankshaft speed meter, trip computer, automatic transmission...
MPI injection system plugs A - oxygen sensor regulation, idle switch, air mass meter, etc. B - crankshaft speed meter, trip computer, automatic transmission...
Oxygen sensor
Vacuum pipeline connections (6-cylinder engine with 174 hp) 1. Brake booster 2. Noise damper 3. Mechanical valve of the exhaust gas recirculation system 4....
Vacuum pipeline connections (6-cylinder engine with 174 hp) 1. Brake booster 2. Noise damper 3. Mechanical valve of the exhaust gas recirculation system 4....
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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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