Wiring connector

The twin jet type injectors are fitted on the inlet manifolds, immedeiately before the inlet valve.

These injectors have been specially designed for engines with 4 valves per cylinder and allow the jets to be directed towards the two inlet valves.

The fuel jets comes out of the injector at a pressure of 3 bar and are instantly atomized forming two cones of around 10° each.

The operation of the injectors is the «sequential phased» type, i.e. the five injectors are operated according to the engine cylinder inlet sequence, whilst the supply can already start for each cylinder during the expansion stroke until the inlet stroke has already begun.

The injectors are fixed by the fuel manifold, which presses them into their housings in the inlet manifolds. In addition they are secured to the fuel manifold by means of «safety clips». Two rubber seals (10) and (11) ensure the seal on the inlet manifold and the fuel manifold.

1. Injector body
2. Needle
3. Magnetic core
4. Coil spring
5. Winding
6. Injector nose
7. Adjustable spring
8. Fuel filter
9. Electrical connection socket
10. Fuel seal
11. Vacuum seal

Wiring connector

The numbers indicate the corresponding control unit pins arranged in the order of the cylinder numbers.

Checking the resistance

The injector resistance can be measured by disconnecting the connector and connecting an ohmmeter as shown in the diagram.

Resistance value 16.2 ohm