Originally Posted by Nukebug
[quote=GLLOQ]NOW, it did not start easily. In fact, it was very rough, and would not idle, I had to keep the RPM's up to run out the smoke from the exhaust. It eventually evened out somewhat, but it still did not idle, and it does not start easily like before.
I checked the ECM and no new codes.

Is this common after a battery disconnect?

No it should start and run normally after a battery disconnect.

Red Leader drive