Hi Volks,
I while back I had sent my injectors out to be cleaned at injector.com.
This was a well tuned van running good with plenty of power for a 2.1.
before I put my newly cleaned injectors back in,  I was having some VS but
that is another story that was solved before I put the injectors back in (I
keep a spare set).  Yesterday I took the van for its first real test run on
a good hilly stretch of highway.  The van is no faster but has more torque
pulling up hills never dropped below 60 on a hill that used to get me down
to 55. Another hill in town that would almost get me down to 2nd I can now
fly up in 3rd.  Here is what the cleaning place found:  3 of my spray
patterns were off, all were very dirty  on the reverse spray test (I run
Tectron once a month so this was a bit of a surprise, also a new filter in
November) and was 11.5% difference between the best and worst injector.
After cleaning all spray patterns were good, none leaked, and were 1.5%
within each other. The cleaner told me these injectors are very reliable and
just need a good cleaning and balancing once in while, these are original
according to my service records.  Unfortunately due to the warmer temps of
spring I don't think I can do any accurate mileage tests because my van
always gets better mileage in warmer weather anyway.  I just wanted to share
my experience with this service as it only costs a little more then 1 new
bosch injector and may save someone some money. I have no interest in
injector.com  I am just a very happy customer.  Only question I would have
is does anyone know if I should have my van retuned with an exhaust gas
analyzer?
Going up hill faster,
Kevin
87 Westy
Burlington VT