I am printing on a Canon Pro-4000 and an ipf9400. The pro-4000 uses an am1 file while the ipf uses canons Fine Art Heavyweight setting. The same print on both machines gets pretty different color results. The pro-4000 being more accurate. Is there any solution to get them closer on an ipf9400?

According to Canon there is no solution. They are completely different ink formulas and use completely different profiles. So, while you can get them both to look pretty good, you will never get them to match.