For the past six months or so, I have been fighting drivability issues
with the 1.9L engine on my '84 Vanagon.  I replaced much of the ignition
system, replaced the old fuel tank with a new one, and checked for
vacuum leaks.  When I installed the new long block in 2003, and replaced
as many of the components as I could obtain even if the existing ones
appeared to be okay.  These included the distributor and the AFM.
Should those items need replacement after eight years (but only about
30,000 miles)?

John