Bob,
It might not be the AFM unit. My son has a 93 Fox with Digifant II and it
would cut out at low RPMs, especially slightly off idle. There is a
throttle switch which enriches the mixture when the throttle is opened
(like an accelerator pump on a carb). His switch is apparently bad. I
disconnected the switch and the cut-out problem went away.
Ric
At 03:44 AM 7/1/01 -0400, Robert Keezer wrote:
Hello
All,
It has been my recent experience to solve a cutting out problem I was
having.
This can occur for a variety of reasons, but in this case, it was the
Hall
control unit.
My engine management system is Digifant ll, which is 88-92 Jetta-Golf (I
have
an I-4)
The 1.9 WBX has a Hall control unit also, which is the square black thing
on
an aluminum heat sink on the left side firewall.
The cutting out came and went about two months ago.
Then it came back about two weeks ago, stalling me several times.
It just kept getting worse-the engine would stall and I would have to
pull
over.
Well, I swapped the AFM first, with no effect. Then the Hall unit, and I
just
came back on a 400 mile trip with no problems-looks like it was the Hall.
I didn't know they could fail intermittently but I do now. So anyone
who's
engine has one of these units should carry a spare-it just might save
your
vacation.
Robert Keezer
1982 Westfalia
Seattle