You know, while I have my ac compressor removed, it might be a good time to
remove and check my fuel injectors, because I suspect dribbly injector
syndrome (mediocre mileage and oil that smells like gas).  Now, I can pull
them two at a time and turn the key enough to turn on the fuel pump to
check for the dribbles.  To check the spray pattern, I don't want to start
the van with two injectors removed and the ac belt flopping around.  I am
also too lazy to remove it completely and bench test it with the compressed
air method.  I was wondering if I just put an external 12V power supply on
it to pop them open while I have the fuel pump on if I could observe a
decent pattern without blowing myself up.  I have heard that the injectors
simultaneously have 12V on them, like they are continuously running with
the engine on.  How on earth does this work?  It seems like you should only
inject before the compression stroke!!

I have a mechanic friend who checks for leaky injectors by hooking up a
fuel pressure guage, running the engine a second and shutting down.  If the
pressure remains without decreasing, the injectors are not leaking.
However, this wouldn't work in a Vanagon, would it?  Isn't the other end of
the fuel rail being returned to the gas tank, so that the rail does not
stay at 40 psi without the fuel pump running?  I can't imagine the whole
gas tank being pressurized because of the vent line through the charcoal
filter.

Finally, in order to check my fuel pressure, the FLAPS guages say they are
for Ford, GM, or Chrysler fittings.  Is there a way to make them work on
our Vans?  Where do you hook them up and how?

Thanks,
Michael Townsend
90 Carat