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B4 (1991-1996) B3 (1986-1991) B3 (1986-1991, petrol) B2 (1979-1986)

Fuel System Specifications (Audi 80 B4)

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  • Audi 80
  • B4 (1991-1996)
  • Power unit
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  • Fuel System Specifications
            0
Table of contents: Petrol engines ↓ Diesel engines ↓

Petrol engines



Fuel injection system Mono-Motronic



Engine letter designation - AVT

Speed (not regulated) — 750-1000 rpm

CO content (not regulated) — 0,2-1,2%

Fuel pressure at idle speed - 0.8-1.2 bar

System pressure 5 minutes after ignition is turned off - min. 0.5 bar

Nozzles

Injector resistance at air temperature (15-30°C) — 1.2-1.6 Ohm

Digifant fuel injection system



Engine letter designation - AVK

Speed (not regulated) — 820±50 rpm

CO content (on the tube) - 0.6±0.4%

Fuel pressure at idle
  • with the low air pressure hose removed - approx. 2.5 bar
  • with low air pressure hose attached - approx. 3.0 bar

System pressure 10 minutes after ignition is turned off - min. 2.0 bar

Nozzles

Injector resistance - 2-10 Ohm

Fuel injection system KE-lll-Jetronic



Engine letter designation - NG

Speed (not regulated) — 720-860 rpm

CO content (on the tube) - 0.1-1.1%

System pressure: 6.1 - 6.5 bar

Injection pressure - 4.3-4.6 bar
  • with the air-fuel mixture corrector plug disconnected - approximately 0.3-0.5 bar less than the system pressure
  • with the air-fuel mixture corrector plug connected and the ignition on - approximately 1.2-1.5 bar less than the system pressure

System pressure after ignition off
  • after 10 minutes - min. 3.5 bar
  • after 20 minutes - min. 3.4 bar

MPI/MPFI fuel injection system



MPI/MPFI fuel injection system




Diesel engines



Diesel engines

(The original material is located on the website: AudiManual.ru)
The article was checked by auto expert Timur Bazhenov
This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

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Audi 80 B4: Fuel system
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General Provisions
Fuel gauge sensor
Fuel pump — checking, removal and installation
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80(B4, 1991-1996) 
  • General information
  • User manual
  • Maintenance
  • Troubleshooting
  • Power unit
  • Engine
  • Cooling system
  • Heating and ventilation
  • Petrol injection
  • Diesel fuel system
  • Fuel system
  • Exhaust systems
  • Ignition system
  • Transmission
  • Clutch
  • Car gearbox
  • Chassis
  • Brake system
  • Suspension and steering wheel
  • Body
  • Body and trim
  • Electrical equipment
  • Electrical system
  • Electrical circuits
 
80(B3, 1986-1991) 
  • General information
  • Repair characteristics
  • Maintenance
  • Power unit
  • Gasoline engine
  • Diesel engine
  • Engine lubrication system
  • Fuel system (gasoline)
  • Injection system (gasoline)
  • Fuel system (diesel)
  • Ignition system
  • Cooling system
  • Heater
  • Exhaust system
  • Transmission
  • Clutch and gearbox
  • Chassis
  • Steering
  • Brake system
  • Car suspension
  • Body
  • Body elements
  • Electrical equipment
  • Power devices
  • Lighting and appliances
  • Electrical circuits
 
80(B3, 1986-1991, petrol) 
  • General information
  • User manual
  • Maintenance
  • Power unit
  • Engine 4-cylinder
  • Engine 5-cylinder
  • Cooling system
  • Fuel and exhaust systems
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical transmission
  • Automatic transmission
  • Drive shafts
  • Chassis
  • Brake system
  • Suspension
  • Steering
  • Body
  • Exterior
  • Interior
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
 
80(B2, 1979-1986) 
  • General information
  • User manual
  • Power unit
  • Engine FZ
  • Engine EP, YP, YZ, DT, DS, DZ
  • Transmission
  • Clutch
  • 4 speed gearbox
  • 5 speed gearbox
  • Front wheel drive
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Brake system
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
 
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