Or maybe a clog somewhere before the EGR.
I hope this is not the case. This is a brand new head, and as I understand it the EGR plumbing is fully internal on the head, there would be no way to block it off. With the valve removed last night I could see that nothing was blocking the port on the head, at least.
Have you pulled the plugs, disconnected and reconnected the battery, or done a compression check?
Have not pulled the plugs or checked compression. I did disconnect the battery yesterday.
Anyway, third time through and another fail. So, at this point I have to get the EGR system working. I need that idle-test stumble. Looks like I'm buying a new valve. Ouch. I will run a few hundred more miles on it and then check compression and plugs.
I think before I run it through late next week I am going to return the AFM and timing to stock settings, and include a baffle to slow down the exhaust a little.
I am out of town through next Tuesday so this is going to have to wait until then :/
