Tonight I changed the intake gasket on both side.  To do so, I disconnected
the plug wires.  Those wires are about a year old.  The rubber insert in the
metal shiel on the plug side was sort of welded on the plug.  On cylinder #
1 it separated very close to the connection with the plug.  I removed that
rubber insert, plug the wire back and TA DAM : misfire.  That's bad since
the engine was running quite correct before the gasket job.

Question :  Could the missing rubber insert in the metal shielded end of the
wire cause the misfire ?  I've checked the overall rsistance of the wire and
it is within the specs Bentley talks about (6000 ohms +/- 1400).  Mine has
4600 ohms.

If not what the hell has happened ?

Thanks for the answers, I just don't want to spend $ 100 if it is not the
problem !

Ignace

1985 Vanagon 1,9 L