The miss fire is not an adjustment issue. Something is wrong or failing.

Check fuel pressure, is it maintained while under load.

Check distributor, worn shaft/bushings will cause extra pulses, injector
openings at various speeds causing all sorts of grief.
Bad ignition coil or cap/rotor can do same. Loose wiring or bad connections.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Josie Lamb Williams
Sent: Monday, March 22, 2010 10:34 AM
To: vanagon@GERRY.VANAGON.COM
Subject: HELP 84 westy misfires between 2800 & 3000 rpm's THANKS

We have a 1984 Westy 1900cc 135,000 miles. 90% of the time badly misfires
specifically between 2800 and 3000 rpm's.  Searched archives but no luck
finding this particular problem.  I'm thinking distributor timing advance,
wiring harness, vacuum leak, ECU.  Seeking words of wisdom from the
experienced.  We do 20+ Art shows from this van and the season is cranking
up, got to get this thing right soon.  THANKS! for any advice on this.

--
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