Hello, I am a new member, used the forum for other things before and enjoyed it. I have a problem with my 98 S420 - 220k; it ran good until I changed the valve cover gaskets today and it would not restart. After double and triple checking everything it has come down to this: NO SPARK on any cylinder, they all are getting gas build-up on the plugs (which are new about a month ago - iridium). I have no idea what would cause all of the plugs to stop sparking from replacing the valve cover gaskets...the grounds are clean and tight, coil connections are good, cranks normal, NO Check Engine Light or codes, tried replacing the CPS today and no change...please help me I am going crazy with this one!
Thank You!!