Vehicle ignition system Audi 80 B3, petrol

Ignition System Specifications
System type KV engine, and 1.6/1.8 liter engines - Transistor coil ignition system (TCI-H) Engine ZA - Ignition system Motronic PS and NG engines - Fully...

General description of the ignition system
The ignition system includes the battery, ignition coil, electronic switch or control unit, distributor and spark plugs. There are four different systems...

Distributor — removal and installation
1. Before removing the distributor, cylinder #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 rotor on some 20 valve engines is fixed to the shaft and if damaged the complete distributor will need to be replaced. Do not attempt...

Transistor Coil Ignition (TCI-H) — Description
The TCI-H ignition system uses a Hall sensor in the distributor, which switches the low-voltage circuit of the ignition coil with a separate transistor switch...

Transistor Coil Ignition (TCI-H) Testing
Note: Audi recommends using the VAG 1315A digital multimeter or VAG 1526 multimeter for the most accurate data during the following tests, as the internal...

Fully Contactless Ignition (FEI) — Description
The common feature with the TCI-H ignition system is that the FEI system uses an ignition coil, a distributor with a Hall sensor, a power output unit (in the...

Fully Contactless Ignition (FEI) — Test
Warning: Before disconnecting any wires (including high voltage) in the ignition system, the ignition must always be turned off. Failure to do so may result in...

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 — Testing
Warning: Before disconnecting any electrical wiring (including high voltage) from the ignition system, the ignition must be switched off. Failure to observe...

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 sensor in the...

MPI Ignition System — Testing
Warning: Before disconnecting any electrical wiring (including high voltage) from the ignition system, the ignition must always be switched off. Failure to...

Ignition timing (KV engine and 1.6/1.8 l engines) — adjustment
Note: A strobe light is required to perform the procedure described in this Chapter. 1. Warm up the engine to normal operating temperature. 2. Stop the engine...

Ignition timing angle (PS and NG engines) — adjustment
Note: A strobe light is required to perform the adjustments described in this Chapter. 1. Warm up the engine to normal operating temperature. 2. Stop the...

Ignition timing angle (engine 7A) — adjustment
Note: To make the adjustments described in this Chapter, special tool number 3179 is required. 1. This engine is equipped with the MPI ignition system...

Spark plugs — removal, maintenance and installation
1. Correct functioning of spark plugs is vital to the proper operation and performance of the engine. It is essential that the plugs installed are suitable for...

Troubleshooting the ignition system
1. There are two obvious signs of ignition failure. The engine does not start or fires, or it is difficult to start and does not run normally. If the engine...

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80(B4, 1991-1996)

80(B3, 1986-1991)

80(B3, 1986-1991, petrol)

80(B2, 1979-1986)