Fiat Bravo Quiz

Petrol fuel injection

In this manual: Petrol fuel injection
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

The petrol engines are fitted with electronic fuel injection systems of different designs. The 1.4 L engine is equipped with the Bosch Monomotronic system, while the 1.6, 1.8 and 2.0 L engines have multi-point injection (MPI) systems from Weber, Hitachi and Bosch respectively.

The advantages of petrol injection over a carburettor are:

  • Precisely metered fuel quantity in every engine operating condition, resulting in lower consumption and good performance.

  • Reduction of exhaust emissions through precise fuel metering.

  • Exhaust gas treatment with a lambda-controlled catalytic converter is possible.

  • Ignition and injection are controlled by one control unit, with shared use of sensors.

  • Self-diagnosis of the control unit, allowing faults to be located more quickly.

  • The control unit is equipped with a fault memory.

    If faults occur in the injection system or ignition during operation, they are stored in the memory. This is indicated by the engine warning lamp lighting up in the instrument cluster.

    Stored faults can be read out using a Fiat diagnostic tool. If the injection system or the engine is not working properly, the faults can be read out at a Fiat workshop for a charge, so that the defect can be rectified if necessary.

The injection system has long-term stable components and is practically maintenance-free. Only the air filter element and the fuel filter must be replaced according to the maintenance schedule.

Essential adjustment and repair work can only be carried out with expensive Fiat test equipment, so this work can only be performed by suitably equipped specialist workshops.

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