Possible engine malfunctions (Audi 80 B3)

If the engine does not start, it is necessary to analyze the possible causes of the malfunction. For a gasoline engine, the fuel-air mixture must be supplied to the cylinders, and the spark plugs must give a spark. It is necessary to check whether fuel is supplied at all.

To find out if there is a spark, you need to unscrew the spark plugs, insert the spark plugs, insert the spark plugs into the tips and apply to ground. In this case, do not hold the spark plug plug with your hand, but grab it with well-insulated pliers. Start the engine with outside help. If a spark does not appear, the fault should be looked for in accordance with the section "Ignition system".

Caution: Observe safety precautions when working with the electronic ignition system.

For diesel engines, the preheating device and fuel system must be checked.





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