audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Overview of fitting locations > < Rules for cleanliness
Motronic fuel injection and ignitionsystem (4-cyl. turbo)
Repairing the Motronic fuel injection system
Technical data

Engine code

AGU

Idling speed
Speed not adjustable- it is controlled by the idle stabilisation

Manual gearbox 860 rpm (air conditioner on and off)
Automatic gearbox (driving position neutral, air conditioner off) 860 rpm
Automatic gearbox (driving position neutral, air conditioner on) 880 rpm
Automatic gearbox (driving position engaged, air conditioner off) 820 rpm
Automatic gearbox (driving position engaged, air conditioner on) 820 rpm

Engine speed limitation
by disconnecting the injectors

6800 rpm

Fuel pressure at idling speed

Vacuum hose connected

approx. 2.5 bar

Vacuum hose detached

approx. 3 bar

Holding pressure after 10 minutes

at least 1.5 bar

Injectors

Spray pattern

Two hole nozzle

Injection quantity (30 s)

85...105 ml

Resistance (room temperature)1)

13...18 ω

1)    If the engine is warm, the resistance increase by approx. 4...6 ω.

Overview of fitting locations > < Rules for cleanliness