Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI199590 QUATTRO SPORT V6-2.8L (AAH)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL TESTINGBASIC SETTING (FUNCTION 04)
1995 Audi 90 Quattro Sport V6-2.8L (AAH)
Basic Setting (Function 04)
1995 Audi 90 Quattro Sport V6-2.8L (AAH)SECTION Basic Setting (Function 04)
The function 04 is used to reset the adaptive learning value for the throttle potentiometer to the base value.
This is necessary if the potentiometer is replaced or adjusted, or if the control unit is replaced.
PROCEDURES TO CHECK MEMORY
- Connect the VAG 1551, Refer to Connecting and Operating VAG 1551 Scan Tool Connecting and Operating VAG 1551 Scan Tool
- After the display appears as shown:
Rapid data transfer HELP
Select function XX
- Select function code.
Return to Basic Setting 04
- Display will appear as shown:
Rapid data transfer HELP
04 - Initiate basic setting
- Press Q button to enter input.
- Display will appear as shown:
Initiating basic setting
Enter display group number XX
- Enter 0 and 0
- Display will appear as shown:
System in basic setting -->
- Press the accelerator pedal down to kickdown and hold for 3 seconds
- Press the "arrow" button.
- Display will appear as shown:
Rapid data transfer HELP
Select function XX
This is necessary if the potentiometer is replaced or adjusted, or if the control unit is replaced.
PROCEDURES TO CHECK MEMORY
- Connect the VAG 1551, Refer to Connecting and Operating VAG 1551 Scan Tool Connecting and Operating VAG 1551 Scan Tool
- After the display appears as shown:
Rapid data transfer HELP
Select function XX
- Select function code.
Return to Basic Setting 04
- Display will appear as shown:
Rapid data transfer HELP
04 - Initiate basic setting
- Press Q button to enter input.
- Display will appear as shown:
Initiating basic setting
Enter display group number XX
- Enter 0 and 0
- Display will appear as shown:
System in basic setting -->
- Press the accelerator pedal down to kickdown and hold for 3 seconds
- Press the "arrow" button.
- Display will appear as shown:
Rapid data transfer HELP
Select function XX
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.