This is a fairly common problem on the Vanagon. From the mechanical side
it can be caused by one or more bad injectors (spray pattern) or carbon
deposits on the back of the intake valves. It is also caused by an ECU
programming bug. The hesitation is actually caused by the fuel mixture
being so lean the engine will miss fire. The ECU is going lean and
trying to go closed loop before the engine is warm enough for the fuel
to adequately vaporize and then ignite properly.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of Greg Stelz
Sent: Friday, July 04, 2003 8:16 AM
To: vanagon@GERRY.VANAGON.COM
Subject: morning sickness

Hey all,

Wanted to run this by the group.  I fire up the
vanagon after its been sitting a while.  Take off down
the road....then, I will get a hesitation for a second
or two where it feels like I've lost power, followed
by a surge, whereby power returns to normal.  This
happens three or four times until she is warmed up,
then symptoms are gone.  It doesn't seem like a spark
problem, it's more like something may be telling the
AFM to restrict air, or timing is being retarded.
Does this make sense?

Greg Stelz
86 westy
Delaware, Ohio

__________________________________
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
http://sbc.yahoo.com