Excellent advice Bill - spot-on in my opinion ... find the leak, return the EC2 to ALL-DEFAULTS, then Modes 3,6,2,1.
Along with Bill's advice I would be very critical of where my manifold pressure pick-up point is and would try to get the EC2 pick-up points as close to my gauge as possible ... there's no point reading a manifold pressure that is not what the EC2 is seeing.
Jeff

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bill Bradburry
Sent: Thursday, June 25, 2009 8:49 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Consistant progress...not sure how to act?

Chris,
If you are idling at 15 inches, you have a leak somewhere.  First check your
manifold pressure in the closed hangar against your altimeter set for field
elevation.  You are at what? 500 ft?  The MP should be within a half inch of
the altimeter setting in the Kollsman window.  If your MP reading is
correct, then find the leak.
I have seen several methods for finding leaks on this list.  Get a can of
WD-40 with the little red tube on it so you can control it and not make much
of a mess, and with the engine idling, spurt(very small spurt) WD-40 on each
crack and cranny on the intake system. Spurt, listen for the idle speed to
increase, spurt next place.  Don't forget where the injectors install, it
could be leaking around them.  Idle increase=leak.  No change=no leak.
Be careful there is a prop on there.  Do this with someone. Don't spray the
exhaust!
To explain what I think might be happening with your fuel flow and HP
numbers in a couple of words, its your new large injectors.  The EM-2 looks
at pulse duration to start to make its calculations.  The big injectors have
a smaller duration to satisfy the fuel requirement.  You will have to
recalibrate your fuel flow to fix this.  Dennis is doing this now as well.
You should start all over with your tuning from the very beginning.  Do the
check the injector flow rate at 22 inches Mode 3. Tracy suggested this
order, Mode 3, 6, 2, 1, then auto tune.  You don't want to be doing auto
tune now, cause every time you do, it will change something.
Fix the leak before you do anything else. Bill B