Date:         Mon, 1 May 95 17:04:09 PDT
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         stafford@alcor.hac.com (Jack Stafford)
Subject:      Re: type IV still misses

On Mon, 1 May 95 ddlroach@skypoint.com wrote:
>I posted an article about my '77 fuel injected 2.0 liter, and how it misses
>sometimes.  It will drive fine and then, at some rpm and load it will miss
>severely and the car jerks around.  Could this be a problem with my EGR
>valve.  As far as I know the valve works fine, but I do not have the filter
>hooked up to the exhaust pipe.  The filter was so rusted that I just took it
>off when I put this engine in the car.

Right after I installed the '78 motor in the '73 chassis I found that the
EGR filter was rusted through in 4 places.  I replaced it with a new filter
(in fear of not passing smog inspection) and found that the previous owner
had welded shut both ends of the old filter.  It looked like a functioning 
filter from the outside. Emissions test passed with flying colors.


The jerking at a certain throttle position may be a worn air flow box.
It was on my '78 TypeIV motor.  At a comfortable mid-throttle position
the VW would surge and hesitate.  $200 bucks and a new Bosch air flow box
it runs great at any throttle position.

Jack     '73 Westy
stafford@alcor.hac.com