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Fuel preparation system Diesel injection > < Readout specifications for engine power output

A4 Mk1

TDI diesel injection and glow plug system (4-cyl.) 08.99 ä
Reading measured value block
Readout specifications for charge pressure control

Display group 11 at full throttle (test drive in 3rd and 4th gear, coolant temperature not below +85 °C)

-Engine code AFF, AHU, AHH

Note: the fault reader must be secured on the rear seat and operated from this position. Always follow the safety precautions relating to test drives =>Page 23-1.

Read measured value block 11

⇒

◂ Indicated on display

3340 rpm

1830 mbar

1850 mbar

57 %

Duty cycle (activation) of charge pressure control solenoid valve -N75

Current charge pressure

Charge pressure required by control unit
▪ 1800...2050 mbar okay
▪ > 2050 mbar: charge pressure has been increased by engine tuning

Engine speed 2900...4000 rpm okay

Display group 11 at full throttle (test drive in 3rd and 4th gear, coolant temperature not below +85 °C)

-Engine code AFN, AVG

Note: the fault reader must be secured on the rear seat and operated from this position. Always follow the safety precautions relating to test drives =>Page 23-1.

Read measured value block 11

⇒

◂ Indicated on display

3340 rpm

1948 mbar

1917 mbar

57 %

Duty cycle (activation) of charge pressure control solenoid valve -N75

Current charge pressure

Charge pressure required by control unit
▪ 1800...2250 mbar okay
▪ > 2250 mbar: charge pressure has been increased by engine tuning

Engine speed 2900...4000 rpm okay

Fuel preparation system Diesel injection > < Readout specifications for engine power output