Audi Workshop Service and Repair Manuals > A4 Mk1 > Power unit | Motronic injection and ignition system (6-cylinder) | Self diagnosis, V.A.G Inspection Service

Motronic injection and ignition system (6-cylinder)

Basic setting

With the engine not running, the following operation can be performed in the basic setting mode:

◆ Adaption of throttle valve control part to engine control unit
=>Display Group 098

With the engine running, the following operations can be performed in the basic setting mode:

◆ Learning process for lambda control
=> relevant Display Group
◆ Fault-finding by activating and deactivating the lambda control
, Display Group 099

Test conditions for operations with engine running

● Coolant temperature at least 80 °C
● Electrical consumers switched off (radiator fan must not run during the check)
● Air conditioner switched off
● Gear selector lever in P or N position
● No faults stored in fault memory

‒ Connect fault reader V.A.G 1551 (V.A.G 1552) and select engine electronics control unit with the "Address word" 01. When doing this the engine must be running at idling speed.
(Connecting fault reader and selecting engine electronics control unit .)

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 4 for function "Basic setting" and confirm entry by pressing Q.

→ Indicated on display:

Introduction of basic setting HELP

Input display group number XXX

‒ Select the required display group number from the Display Group Overview in the "Read measured value block" section.

Note:

Display Group number 000 is used here as an example to demonstrate the procedure.

→ Indicated on display:

Basic setting Q

Enter display group number 00

→ Indicated on display:

Basic setting 0 Q

1 2 3 4 5 6 7 8 9 10

Display Group 000


Display group 000 (decimal displayed value)1)
Basic setting 0								⇒		◂ Indicated on display
1	2	3	4	5	6	7	8	9	10	◂ Display zones	Specification	Corresponds to
										Lambda learnt value Bank 2 (mul.)	115...141	-10...10 %
									Lambda learnt value Bank 1 (mul.)		115...141	-10...10 %
								Lambda control value Bank 2			115...141	-10...10 %
							Lambda control value Bank 1				115...141	-10...10 %
						Idling air mass learnt value					118...138	-5...5 kg/h
					Idling air mass control value						115...141	-10...10 %
				Throttle valve angle							0...12	0...5 <°
			Engine speed ▪ Four-wheel-drive ▪ Front wheel drive								62...74 74...86	620...740 rpm 740...860 rpm
		Engine load									20...50	1.0...2.5 ms
	Coolant temperature										171...204	80...105 °C

1) This table is only provided as an overview. The relevance of individual measured values is explained in display groups 001 to 099.

Notes:

◆ In Display Group 00 the measured values are shown in decimal form.
◆ Press the PRINT key at any time to print out the message currently being displayed.
◆ Before selecting more display groups, press C.

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.

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