Hi and thanks for using 2CarPros. Com.
Most often, a rough idle is caused by a vacuum leak, but you checked that. Just make sure none of the hoses split or fell off while things were going back together. As far as the EGR, if there was not an issue prior to the gasket replacement, it should be fine.
Next, confirm that all the air intake tube components and hoses are properly attached and not leaking.
Recheck to make sure none of the plug wires are arcing or if one of the spark plugs is partially disconnected.
Let me know what you find.
Joe
SPONSORED LINKS
Saturday, October 20th, 2018 AT 4:45 PM