Error Code 0707 GU ZD-30 auto

[jase-t]

hello good people.got code 0707 on my gu wagon zd-30 auto) my new mechanic said prepair yourself for recon injector pump. and then some. scary $$$. could there be another cause for the fault light to show this code ? and if not , could someone recomend a good engine swap that i can get done with a warrenty.

[NissanGQ4.2]

From what I have read on that error code it could be caused from a blocked fuel filter or air being sucked in the fuel lines.