Basic Engine Adjustment Using VAG 1551 Scan Tool (GROUP 01, NO. 92-02)

WARNING: This page is about the 100 Base, 2.8 J, Automatic, which is a different variant/trim than selected.

Publication date: 1992-11-30
Reference number: GROUP 01, NO. 92-02

BASIC ENGINE ADJUSTMENT USING VAG 1551 SCAN TOOL

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 01, NO. 92-02

BASIC ENGINE ADJUSTMENT USING VAG 1551

Model(s): 1992 Audi 100

Group: 01

Bulletin No.: 92-02

Date: November 30, 1992

BASIC SETTING OF ENGINE USING SCAN TOOL VAG 1551

NOTE: When Basic Setting is selected, the MPI Engine Control Module (ECM) establishes the following conditions:

Idle Air Control (IAC) is blocked.
Constant timing of 12° is set.
Evaporative Emission (EVAP) solenoid valve I is closed.
A/C compressor is switched OFF.
EGR valve switched OFF.
No Engine Coolant Temperature (ECT) correction (fixed value: 80°C or 176°F).

REQUIREMENTS

Diagnostic Trouble Code (DTC) memory has been read and erased. See section D2-20 in Troubleshooting Guide.
ECT 85°C (185°F) minimum.
All electrical consumers switched OFF.
A/C switched OFF.

- Repeatedly press MINUS button for blower speed selection in A/C control head until all displays are erased.

Vehicles with climate control only.
Transmission selector lever in P or N.

- Disconnect hoses from valve covers and close off both hose ends with suitable plugs.

- To remove hoses push oval outer ring together at location shown in (arrows).

- To close off hoses use plastic plugs as shown in Fig 1 , normally used to close connections for new parts.

Fig 1: Valve Cover Hose End

- Connect VAG 1551 Scan Tool and perform all steps up to entry of address word 01.

- Start engine and let idle.

NOTE: A list of possible functions will be printed after pressing the HELP button.

DISPLAY WILL SHOW THE FOLLOWING:

Fig 2: Display 1

- Press 0 and 4 buttons to select Function 04 "Start basic setting".

DISPLAY WILL SHOW THE FOLLOWING:

Fig 3: Display 2

- Press Q button to enter input.

DISPLAY WILL SHOW THE FOLLOWING:

Fig 4: Display 3

NOTE: Press HELP button to list instructions for entering the display group number.

- Press 0 button two times to select Function 00 "System in basic setting".

- Press Q button to enter input.

DISPLAY WILL SHOW THE FOLLOWING:

Fig 5: Dislay 4

NOTE: For an explanation of the various channel displays, refer to the EXPLANATIONS chart.

The values which will appear in channels 1 through 10 are displayed in decimals. Refer to "Description..." column to convert these values to physical values whenever this becomes necessary.

Current display will be printed on paper strip if printer is switched ON.
Current display will print again whenever the PRINT button is pressed.

Values displayed in all channels:

- Press -> button.

DISPLAY WILL SHOW THE FOLLOWING:

Fig 6: Display 5

- Press 0 and 6 buttons and select Function 06 "End output".

DISPLAY WILL SHOW THE FOLLOWING:

Fig 7: Display 6

- Press Q button to enter input.

DISPLAY WILL SHOW THE FOLLOWING:

Fig 8: Display 7

Fig 9: Explanations of Displays In Channels 1-10

NOTE: If the displayed values do not agree with the specified values, refer to Test Table in Troubleshooting Guide.