CM870 Smoking Issues

[hhow55]

(02-17-2020 )Chamberpains Wrote:  This could also be a mechanical problem with the EGR valve. I'd pull that off and give it a thorough inspection. It maybe opening or allowing EGR gas in to the system when it's not needed.

When you get Insite up and running you'll be able to monitor fuel pressure and temps. My operating fuel pressure hangs at the 270 +/- (8) or so psi. Its perfectly normal for your fuel tanks to be warm.

Also PM Mommaburt or Unilevers up to see if they can get that "cold weather bug" fixed. I've asked about it and Uni says he has a fix for it. He says its something that Cummins just gave up on because of the age of the engine. They just kind of let that go in the programming.

This could also be a mechanical problem with the EGR valve. I'd pull that off and give it a thorough inspection.

If this the problem, along with diesel smell you mention. This certainly could cause a surging issue.