Professional Fuel Injection Cleaner Hookups

["Stragand, Dave" <dave.stragand@xxxx>]

Hi All,

I have a question on professional fuel injection cleaners, like the
NAPA/Echlin universal system. In the instructions for Bosch K-Jetronic,
they have instructions to hook the hose to the fuel inlet, plug the
return port with the included plug, and disconnect the pump at the fuel
pump connector.

My question is this: in their diagram, the fuel return only has one
line shown -- the fuel return line. The return on the frequency valve
is also connected to this port, so plugging the port would leave the
return from the frequency valve disconnected. My thoughts are that this
is not a good idea, and instead the return line should be left off and
the frequency valve return connected back up to this port with a
single-hose connector (a spare single hose connector from the main line
will fit fine. Any thoughts on this?

Also, is it necessary to disconnect the pump at its connector, or would
simply tripping the inertia switch be sufficient?

-Dave
VIN #05927


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