Section 03-04B: Fuel Charging and Controls—5.0L | 1993 Mustang Workshop Manual |
The fuel injector nozzles are electro-mechanical devices which both meter
and atomize fuel delivered to the engine. The multiport fuel injection (MFI)
injectors are mounted in the lower intake manifold and positioned such that
their tips are directing fuel just before the engine intake valves. The valve
body consists of a solenoid actuated valve assembly. Therefore, fuel flow to
the engine is regulated only by how long the solenoid is energized. An
electrical signal from the powertrain control module (PCM) activates the
solenoid, causing the needle to move inward off the seat, allowing the fuel to
flow through the orifice. Atomization of the fuel is obtained by contouring the
needle at the point where the fuel separates.
| Item | Part Number | Description |
|---|---|---|
| 1 | — | Rail O-Ring Seal |
| 2 | — | Integral Filter |
| 3 | — | Coil |
| 4 | — | Armature |
| 5 | — | Manifold O-Ring Seal |
| 6 | — | Stainless Steel Body |
| 7 | — | End Cap |
| 8 | — | Stainless Steel Needle |
| 9 | — | Washer |
| 10 | — | Electrical Connector |