1988 Audi 80 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Electronic Control Unit (Ecu)

The ECU receives signals from air sensor potentiometer, oxygen sensor, coolant temperature sensor, throttle valve switches and ignition control unit. Using this data, ECU varies air fuel mixture and ignition timing as necessary. The ECU is located behind glove box next to heater plenum.

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.