Hey folks,

Typically after a damp spell, the van will start fine, head down the
road okay but after the first deceleration - acceleration then becomes
jerky. By jerky it is essentially (regardless of gear) choking back when
the accelerator is pressed - causing stalls. If the van is restarted,
this clears the problem up for a bit, but it will typically happen again
and again and again... The problem seems exacerbated by hills.

I've read through the archives and the recent forums and it sounds like
the O2 sensor may be at the root of it. I know enough about van repair
to do minimal damage, but having a good friend as a mechanic helps. I
told him I'd do some legwork on Vanagon issues before I took it into his
care. (He is a good friend so I don't want to frustrate him too much).
His initial reaction was wiring, which the issue does sound electric in
its root, but the thought of the O2 sensor came back to me. FYI, I had
the O2 sensor replaced back in 2002. I'm perfectly willing (an eager) to
accept that this is a fault, but wanted to give my friend a few
directions to go in.

Thanks.