Fiat Bravo Quiz
Ignition/spark plugs

Safety precautions for the ignition and fuel injection system

In this manual: Ignition/spark plugs
Dear Reader — 1Engine — 35Engine lubrication — 3Engine cooling — 10Ignition/spark plugs — 14Fuel system — 10Petrol fuel injection — 13Diesel injection system — 13Exhaust system — 7Clutch — 7Transmission / Gearshift / Automatic Transmission — 5Front Axle — 11Rear axle — 4Steering — 9Wheel alignment — 1Brake system — 22Wheels and tyres — 10Body — 34Heating — 6Electrical system — 39Lighting system — 14Instruments — 7Windscreen wiper system — 8Vehicle care / tools — 6Jump Starting / Towing the Vehicle — 3Jacking up the vehicle — 1Fiat Bravo / Brava Maintenance Schedule — 1Maintenance — 38Wiring diagrams — 5
~1min read

On electronic ignition systems, the ignition voltage can be up to 30 kV (kilovolts). Under unfavorable conditions, for example if there is moisture in the engine compartment, voltage peaks can break through the insulation. If components of the ignition system are then touched, this can cause electric shock.

To prevent personal injury and/or destruction of the electronic engine control module, observe the following when working on the ignition and fuel injection system:

  • Do not touch or disconnect spark plug leads with the engine running or while cranking.

  • Disconnect or connect multi-pin connectors of the ignition and fuel injection system only with the ignition switched off. Make sure all connectors are seated properly.

  • Connect and disconnect measuring device leads (tachometer/ignition tester) only with the ignition switched off.

  • Do not start the engine without the battery securely connected.

  • Never disconnect the battery while the engine is running.

  • Disconnect the battery from the vehicle electrical system before charging or fast charging.

  • Jump-start only with a 12-volt battery and jumper cables. Do not use a battery charger.

  • At temperatures above +80 °C (drying oven), remove the control unit.

  • Use only high-impedance voltage testers (voltmeter, diode voltage tester). Do not test voltage with a test lamp.

  • Before electric arc or spot welding, disconnect the battery from the vehicle electrical system and remove the control units.

  • Before testing the fuel injection system, make sure that the ignition and spark plugs meet the specifications.

  • Carry out engine washing only with the ignition switched off.

  • Persons with a pacemaker must not perform work on the electronic ignition system.

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