How can I repair my LLY injector Controle module?
The sharp corner of the FICM bracket cuts into the wire loom and the wires. Cut the zip tie and inspect the wires inside the plastic loom. Repair the wires as necessary– Best to isolate the harness with a short piece of heater hose.
How does the injector work in a diesel engine?
Fuel enters the injector through an opening on the side of the injector body, which is delivered by the fuel pump and surrounds the injector through passages in the cylinder head. At idle, the high-pressure oil is around 600 psi. When the engine is at WOT, the high-pressure oil can reach 3,000 psi.
What causes fuel to drain out of the injector?
In addition, the customer may notice some fuel dilution in the oil by seeing that the oil level is rising on the dipstick. When the engine is shut down, the crack in the injector’s body will often cause fuel to drain back from the fuel lines and rails back to the tank.
What happens if the engine control module fails?
If the ECM fails completely, it will leave the vehicle without engine management control, and will not start or run as a result. The engine may still crank, but it will not be able to start without the vital inputs from the computer.
How does the fuel injection control module work?
Diesel Fuel Injection Control Modules Don’t Tolerate Rough Running on Cold Starts On the Ford ® 6.0L Power Stroke ® engine, the Fuel Injection Control Module (FICM) supplies 48 volts to the two injector solenoids. A voltage drop will lead to improper oil flow regulation and fuel injector function.
Where is the injector information stored in the ECM?
The control functions for the fuel injection system are integrated in the engine control module (ECM). Each injector’s flow rate information and cylinder position are stored in the memory of both the glow plug control module (GPCM) and the ECM.
How does the PCM control the fuel injectors?
Based on the cranks sensor signal, the PCM grounds the injector to allow the injector to inject fuel into the cylinder. It makes and breaks the ground many times per second to allow the proper amount of fuel into the cylinder. helpful? That sounds fine, but the wiring diagram in the shop manual does not match that at all.
How to change the flow rate of an injector?
Record all flow rate numbers with the corresponding cylinders from the control modules. ⇒ If any injectors are replaced, go to Reprogram Injector Flow Rates parameter and enter the flow rate number of the new injector to the corresponding cylinder. The flow rate numbers will automatically update both control modules.