Foreword

Foreword

The Bravo-Brava 1596 16v versions are equipped with a 4 cylinder in line, 16 valve, 1596 cc engine with a twin overhead camshaft and Marelli IAW 4EF integrated electronic injection/ignition system.

The fuel system differs from the one described for the 1581 16v "99 range" version through the inclusion of several variants designed to make it compatible with the EEC Stage 3 EOBD regulations.

The main modifications to the system can be summarized as follows:

• Engine management control unit with IAW 4EF code
• Catalytic converter near the exhaust manifold to take maximum advantage of the heat of the gases.
• Two Lambda sensors, one upstream (front) and one downstream (rear) which check the quality of the exhaust gases and the operation of the catalyzer.
• Adoption of timing sensor on inlet side timing pulley.

DIAGRAM SHOWING ENGINE EXHAUST SYSTEM

Key

1. Exhaust manifold
2. Catalytic converter
3. Front Lambda sensor
4. Rear Lambda sensor
5. Silencers