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.
1999 Volkswagen GTI (1J1) V6-2.8L (AFP)FACTORY OEM SERVICE PROCEDURE
Engine Control Module: Application and ID
Control Module Identification and Equipment
Control Module Identification
The control module version is displayed when the VAG1551 Scan Tool (ST), the VAG1552 mobile scan tool or the VAS5051 vehicle diagnostic, testing and information system is connected and "Engine Electronics" address word 01 is selected [1][2][3]Connecting VAG 1551 Scan Tool
Technical data
Engine code AFP
System designation Motronic ME7.1
Exhaust emissions conform to: OBD II
On Board Diagnostic (OBD) yes
Output Diagnostic Test Mode yes
Operating mode of data transfer to VAG1551/1552 Rapid data transfer
DTC memory Non-volatile memory 1)
Readiness Code Memory Volatile memory 2)
Heated Oxygen Sensors (HO2S) 2 sensors
Knock control 2 knock sensors
Twin-path intake manifold yes
Variable valve timing no
Charge pressure control no
Secondary Air Injection (AIR) system yes
1) Independent of voltage supply.
2) Values are erased when voltage supply is interrupted.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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