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Try un-hooking the line from the in-tank pump where it feeds the outer unit and turn your key on to see if fuel is reaching that point, if it is then un-hook the line coming out of the outer pump and see what you have there ? Did you get a new pump or used ? Cis and Cis E runs on higher fuel pressure than newer Digifant systems. Do you have part#s from new pumps ?
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