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Hi Lauren the easiest way to Blead these systems is to suck the fuel through the return line at the filter. This pulls all the fuel and air through the high pressure pump and primes the injectors. This is the most efficient way to do the job. Because even a small amount of air in the high pressure pump will prevent it from starting.
Open the fuel supply line into a container while it's pumping (running) and trying to start. When the fuel begins to run clear (no bubbles), then close the fuel line and it will light if all is in order.
If it ran fine before you changed the filter, then did you prime the system before trying to start it? To do this, simply turn the key on but don't crank the starter then back off. Do this three to four times and what this does is builds pressure back in the fuel lines because when you changed the filter you lost the pressure and now will have a air bubble in the lines until you prime it. Hope that helps