audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Fitting locations overview > < Rules for cleanliness
Motronic injection and ignition system (4-cyl.)
Servicing Motronic injection system
Technical data

Engine code

APT (1.8 ltr. / 5V naturally aspirated
/ 92 kW engine)

Idling speed
Not adjustable - controlled by idling speed stabilisation



810 ... 910 rpm

Maximum engine rpm
Engine speed limited by closing throttle valve


6800 rpm

Fuel pressure at idling speed

Vacuum hose
connected


approx. 3.5 bar

Vacuum hose
disconnected


approx. 4.0 bar

Holding pressure after 10 minutes

at least 2.5 bar

Injectors

Spray pattern

same at all injectors

Injection quantity
(30 sec.)


85...105 ml

Resistance
(room temperature)1)


12 ... 13 ω

1)    When the engine is at operating temperature the resistance is increased by approx. 4...6 ω.

Fitting locations overview > < Rules for cleanliness