Originally posted by bflood:
My manual seems to indicate that the hold pressure should be something lower than the running pressure but what it is I forget.



This would be true of a return type system, but even so the pressure should not fall below 30 -35.

As mentioned, pull the plugs and examine for gas in the cylinders. Run a good injector cleaner and retest.

"Those who cannot remember the past are condemned to repeat it" -George Santayana