Why does my fuel injector keep stalling?

Some of the problems are stalling after you have pressed the accelerator, struggling to accelerate and poor fuel economy. Most of these problems occur due to inadequate air to fuel ratio. Also, any delay could lead to overheating and the engine could stall.

What causes the injector spool valve to stiction?

Injector stiction has to do with the injector spool valve. When the FICM commands the injector to open, there can be a delay in the spool valve movement, usually from the spool valve sticking in the bore. There are several things that can cause stiction of the spool valve.

What happens when the injector on a diesel engine is cracked?

So when an injector becomes cracked and the fuel has leaked down in the injection system, crank times will become almost tripled in order for the fuel system to re-prime and the desired threshold reached in order to fire the engine. Determining exactly which injector is cracked can be a lengthy process.

How long does it take to replace fuel injector?

But, if you need to replace the old fuel injector with a new one, on a do it yourself basis, with intermediate skills, it will take you between 1 to 2 hours. This guide is for an Engine Fuel System vehicle. Also, you will need to have an intermediate Skill Level to carry out this routine.

What is stock pressure of LS1 fuel rail?

How To Install LS1 Fuel Injectors. Fuel Pressure – The stock pressure at the LS1 fuel rail is 56 psi worth of fuel. You can achieve this a number of ways. You’ve got an aftermarket fuel pressure regulator and fuel system.

How to connect a common rail injector to a chassis?

Connect the active test lead of channel #1 to one of the first injector’s wires. Then connect the ground lead to the chassis ground. Connect the active test lead of channel #2 to one of the second injector’s wires. Connect the active test lead of channel #3 to one of the third injector’s wires.

Why is fuel not injected into a rail injector?

Thus, the solenoid valve is pushed downward, effectively closing the outlet orifice. For this reason, the hydraulic pressure that is applied to the command piston causes the nozzle spring to compress. This closes the nozzle needle, and as a result, fuel is not injected.

What happens when the solenoid is turned off on a rail injector?

When current to the solenoid is turned OFF, the solenoid valve falls causing the nozzle needle to close immediately and the injection to stop. Disconnect the two-pin injector connector.