Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
1-26 Description and Operation
Engine Control Components
Fuel Injection Pump
Item | Part Number | Description |
|---|---|---|
1 | — | Low Pressure Fuel Inlet |
2 | — | Fuel Volume Regulator Solenoid |
3 | — | Pump Piston Follower |
4 | — | High Pressure Fuel Outlet |
Fuel Injectors
NOTICE: Do not apply battery positive (B+) voltage directly to the fuel injector electrical connector pins. Internal damage to the solenoid may occur in a matter of seconds.
The fuel injector is a solenoid operated valve that meters fuel flow to the engine. The fuel injector opens and closes a constant number of times per crankshaft revolution. The amount of fuel is controlled by the length of time the fuel injector is held open.
The fuel injector is normally closed and is operated by a 12 volt source from either the PCM power relay or fuel pump relay. The ground signal is controlled by the PCM.
The fuel injector is a deposit resistant injector (DRI) type and does not have to be cleaned. Install a new fuel injector if the flow is checked and found to be out of specification.
2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.