Electronic Fuel Injection (EFI) system

From the 1990 model year, an Electronic Fuel Injection (EFI) system controlled by the Electronic Engine Control IV (EEC IV) system, and incorporating an Electronic Distributorless Ignition system (E-DIS 4) is used on all 1.6 litre fuel injection models. The system is designed to meet the requirements of the European 15.04 exhaust emission control laws.

See also:

Exhaust gas oxygen (HEGO) sensor (2.0 litre DOHC/1.6 & 1.8 litre (R6A type) CVH) - removal and refitting
Note: Do not touch the tip of the HEGO sensor as this will drastically shorten its service life. Note: A new sealing ring should be used on refitting. Removal 1 Ensure that the engine and the ex ...

Diagram 3a: 1986-on Ancilliary circuits all models
Diagram 3a: 1986-on Ancilliary circuits all models ...

Mixture adjustment check (Every 6000 miles (10 000 km) or 6 months)
Caution: Refer to the precautions in Section 1, Chapter 4, Part A or B (as applicable), before proceeding. Before carrying out any carburettor adjustments, ensure that the ignition timing and sp ...