Ignition System Specifications System type KV engine, and 1.6 / 1.8 liter engines - Transistor-coil ignition system (TCI-H) Engine FOR - Motronic ignition system PS and NG engines - Fully...
General description of the ignition system The ignition system includes a battery, an ignition coil, an electronic switch box or control box, a distributor, and spark plugs. There are four different...
Distributor — removal and installation 1. Before removing the distributor, cylinder No. 1 must be set to TDC on the compression stroke. To do this, remove the spark plugs, then turn the engine...
Distributor — disassembly, inspection and assembly Warning: The distributor runner on some 20 valve engines is shaft mounted and if damaged the complete distributor will need to be replaced. Do not attempt to...
Transistor-coil ignition system (TCI-H) — description The TCI-H ignition system uses a Hall effect sensor in the distributor that switches the low voltage circuit of the ignition coil with a separate transistor...
Transistor-coil ignition system (TCI-H) — test Note: Audi recommends using the VAG 1315 A digital multimeter or the VAG 1526 multimeter for the most accurate readings in the following tests as the internal...
Fully Contactless Ignition (FEI) — Test Warning: Before disconnecting any wires (including high voltage) in the ignition system, the ignition must always be switched off. If this is not done, there...
Motronic ignition system — description The Motronic ignition system is used on the 3A engine and operates in the same way as the FEI system described in Chapter 7 . The ignition control unit and the...
Motronic ignition system — test Warning: Before disconnecting any electrical wiring (including high voltage) from the ignition system, the ignition must be switched off. If this precaution is...
MPI ignition system — description The MPI ignition system is used on the 7A engine and is similar to the Motronic system described in Chapter 9 . In addition to the Hall effect sensor in the...
MPI ignition system — test Warning: Before disconnecting any electrical wiring (including high voltage) from the ignition system, the ignition must always be switched off. If this...
Ignition timing (PS and NG engines) — adjustment Note: A stroboscope is required to make the adjustments described in this chapter. 1. Warm up the engine to normal operating temperature. 2. Stop the engine,...
Ignition timing (engine 7A) — adjustment Note: Special tool number 3179 is required to make the adjustments described in this chapter. 1. This engine is equipped with the MPI ignition system described...
Spark plugs — removal, maintenance and installation 1. Proper functioning of spark plugs is vital to the proper operation and performance of the engine. It is essential that the installed spark plugs match the...
Troubleshooting the ignition system 1. There are two obvious signs of ignition damage. The engine does not start or fires, or it is difficult to start and does not run normally. If the engine...