Hey Kyle,
I have no idea what might be causing your idle to fluctuate up and down. On other diesels I have seen this caused by small air leaks in the fuel system that are imperceptible at higher rpms. This is easily checked by placing a clear return line on the injector return circuit. There should be absolutely no air bubbles in the returning fuel. I always forget to check my user cp so if you want to shoot me an email at rwthomas1 "at" yahoo "dot" com or post it here. My "immense knowledge", now that is funny!!! RT
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