|
Reading measured value block (data block)
Readout specifications for engine power output - vehicles with 96 kW motor
Display Group 008 at full throttle (road test, coolant temperature not below 80 °C)
Important: Always observe safety precautions => Page 01-1.
Important: Observe rules for road test at full throttle => Page 01-89.
Display zone 1 ... 2
|
|
|
|
|
|
Display group 8
|
|
◂ Indicated on display
|
|
|
|
XXXX rpm
|
XX.X mg/stroke
|
XX.X mg/stroke
|
XX.X mg/stroke
|
◂ Display zones 1 ... 4
|
|
|
|
|
|
|
|
Display zones 3 and 4 => Page 01-133
|
|
|
|
|
|
Desired injection quantity (accelerator pedal position): 65 ... 70 mg/stroke okay
▪ < 65 mg/stroke:
▪ Accelerator pedal not fully depressed, accelerator pedal position sender -G79 incorrectly adjusted or defective => test 4)
|
|
|
|
|
Engine speed: 2800...3200 rpm okay
|
|
|
|
4) Test accelerator pedal position sender:
|
|
Display zones 3 ... 4
|
|
|
|
|
|
Display group 8
|
|
◂ Indicated on display
|
|
|
|
XXXX rpm
|
XX.X mg/stroke
|
XX.X mg/stroke
|
XX.X mg/stroke
|
◂ Display zones 1 ... 4
|
|
|
|
|
|
|
|
Injection quantity limitation according to detected air mass (to avoid exhaust smoke): 16 ... 34 mg/stroke okay
▪ < 16 mg/stroke:
▪ detected air mass too small => test air mass meter, Page 23-107
▪ Exhaust gas recirculation at full throttle => test 5)
|
|
|
|
|
|
|
Injection quantity limitation according to engine speed (torque limitation):
25 ... 51 mg/stroke: okay
▪ < 25 mg/stroke: engine speed too high or too low
▪ > 51 mg/stroke: injection quantity increased as a result of tuning
|
|
|
|
|
|
Display zones 1 and 2 => Page 01-132
|
|
|
|
5)Testing exhaust gas recirculation:
|
|
Display Group 010 at full throttle (road test, coolant temperature not below +80°C)
Important: Always observe safety precautions => Page 01-1.
Important: Observe rules for road test at full throttle => Page 01-89.
|
|
|
|
|
|
Display group 10
|
|
◂ Indicated on display
|
|
|
|
XXX mg/stroke
|
XXXX mbar
|
XXXX mbar
|
XXX %
|
◂ Display zones 1 ... 4
|
|
|
|
|
|
|
|
Accelerator pedal position: 100 % okay
▪ < 100 %:
▪ Accelerator pedal not fully depressed
▪ Accelerator pedal position sender -G79 incorrectly adjusted or defective => test 4)
|
|
|
|
|
|
|
Intake manifold pressure (charge pressure): 2100 ... 2600 mbar okay
▪ If outside tolerance: charge pressure control defective => Display group 011, Page 01-135
|
|
|
|
|
|
Atmospheric pressure (ambient air pressure): no specification
|
|
|
|
|
Intake air mass: 900 ... 1250 mg/stroke okay
▪ < 900 mg/stroke:
▪ Engine speed too low or too high
▪ Charge pressure too low => monitor display zone 3
▪ Air mass meter defective => test, Page 23-107
|
|
|
|
4) Test accelerator pedal position sender:
|
|
| 
