Audi Workshop Service and Repair Manuals > A4 Mk1 > Power unit | Motronic Fuel Injection and Ignition System (6-cylinder) | Self diagnosis, V.A.G Inspection Service

Motronic Fuel Injection and Ignition System (6-cylinder)

Basic setting

With engine stopped and ignition switched on, the following operation can be carried out with the "Function 04" basic setting:

◆ Adaption of the throttle valve control unit to the engine control unit => Display group 060
()
◆ Vehicles with automatic gearbox: Adapting kick down function of accelerator position sender to engine control unit =>Display group 063 ()

With the engine running, the following operations can be performed with the basic setting function:

◆ Adaption process of the Lambda control
◆ Fault finding by selective activation and deactivation of the lambda control => display group 099
Pay attention to the safety precautions on Page 24-83.

Test conditions for operations with engine running

Test sequence

‒ Connect the vehicle diagnostic, testing and information system VAS 5051 or fault reader V.A.G 1551 and select engine electronics control unit with "Address word" 01
For this purpose, the ignition must be switched on.

or after each required process:

→ When indicated on display:

Rapid data transfer HELP

Select function XX

→ When indicated on display:

Starting basic setting Q

Enter display group number XXX

Example:

Note:

After this display group number is selected, the active carbon canister valve is closed and the air conditioner compressor is switched off.

→ Display:

Basic setting 0 Q

1 2 3 4 5 6 7 8 9 10

Notes:

◆ In display group 000 the measured values are shown in decimal form.
◆ If the printer is switched on, the current display can be printed out on the record slip.
◆ To change to another display group, proceed as follows:

‒ Run engine at idling speed for a few minutes, coolant temperature at least 80 °C.
‒ If all the display zones show the specified values, press the ⇒ key.

→ Indicated on display (function selection):

Rapid data transfer HELP

Select function XX


Display group 000 (decimal readouts)
▪ Engine idling (coolant temperature not less than 80 °C)
1	2	3	4	5	6	7	8	9	10	◂ Display zones	Specified value	Corresponds to
										Learned value for mixture formation, Bank 2	77...179	-10...10 %
									Learned value for mixture formation, Bank 1		77...179	-10...10 %
								Control value for mixture formation, Bank 2 (if outside tolerance, perform test drive)			115...141	-10...10 %
							Control value for mixture formation, bank 1 (if outside tolerance, perform test drive)				115...141	-10...10 %
						Learned value for torque loss at idle					102...169	-5...8 %
					Idling torque						77...179	-10.0...10.0 %
				Throttle valve angle							0...8	0...3.0 %
			Engine speed (idling speed) ▪ 2.4 litre front and four-wheel drive ▪ 2.8 l FWD ▪ 2.8 litre four-wheel drive								67...77 72...82 63...73	670..0.770 rpm 720..0.820 rpm 630..0.730 rpm
		Engine load (no consumption units)									16...34	12...26 %
	Coolant temperature (requirement for basic setting)										180...207	80...107 °C

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