Ignition system — general information In a gasoline engine, the ignition system ignites the air-fuel mixture in the combustion chambers of the cylinders. This starts the combustion of the mixture....
Ignition coil — general information In order for a spark plug to spark, a high voltage must be applied to the electrodes of the spark plug. Depending on the ignition system, this voltage reaches...
Spark plugs — general information The purpose of the spark plug is to ignite the air-fuel mixture in the combustion chamber. In this case, a temperature of about 2500 degrees and a pressure of...
Interelectrode distance on the spark plug Along with the corresponding glow number, there must be a certain distance between the electrodes of the spark plug. This distance in most engines is from 0.9...
What does the appearance of the candle say? The condition of the electrodes can be used to determine whether the engine is operating optimally. Spark plugs, to a certain extent, show how the combustion...
Safety measures when working with the ignition system The ignition system is classified as a hazardous device according to legal regulations. When working on the ignition system, special safety measures must be...
Fuel injection and ignition system Below, for all Audi A4 engines, there is a table with parameters that relate to ignition and fuel injection systems.
Dismantling, checking and installing spark plugs In terms of maintenance, Audi recommends replacing spark plugs only after 60,000 kilometers. As a rule, candles withstand this interval without problems....
Control of ignition coils and high voltage wires 1. Are the wires and multi-pin plugs securely attached to the ignition coils and control unit? High voltage wires must be securely inserted into the sockets....
Checking the ignition current 1. Remove the tip from one of the candles, separate the ignition coil, unscrew the candle. 2. Reattach the tip to the spark plug. After that, place the spark...
Checking the ignition system Ignition coils with an integrated final stage, Hall sensors, engine speed sensors and other parts are tested individually or as part of the ignition system...
Index of malfunctions of the ignition system Index of malfunctions of the ignition system It is assumed that the mechanical parts of the engine are in good condition, the fuel supply and the gasoline...