LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Audi >> 1982 >> 5000 Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> BOSCH Hall Effect Electronic Ignition >> Adjustments >> Tachometer Adapter
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Tachometer Adapter

  1. An adapter is necessary when attaching a conventional tachometer into the Hall Effect electronic ignition system. See Fig 1. Tachometer Black lead is attached to engine ground. Attach adapter to tachometer Red lead.
    Fig 1: Assembling and Installing Tachometer Adapter
    G09323421Courtesy of NOT AVAILABLE

    Resistor connections should be soldered securely. 

  2. Adapter is formed from 2 wires soldered together at one end. One wire (leading to coil terminal 1) must be equipped with a 1000-ohm, 1-watt resistor.
  3. The second wire (leading to engine ground) must be equipped with a 12, 000-ohm, 1-watt resistor. Both resistors should be soldered to attaching wires.