Paul,
   I know you and others are working on alternatives to feed the P Port
   slide throttle. Tracy's ECU works on MAP and because of the pulsations
   and short intake this will not work. Mazda stock ECU has TPS could this
   work with a re-programed or adjustable ECU offered by these folks?
   http://www.turnerdr.com/products.asp?cat=100

   Joe Berki
   Limo EZ

   Well the jury is still out. Mark Suspinski p-port engine seems to be
   working
   fine on the ground with Tracy ECU.

   I think these are stock units that are upgraded.
   Perry Mick has a stock unit working fine. He had to trick a few
   sensor inputs as I recall. Last I heard he was still working on the
   leaning circuit.

   It uses a stock mass air flow sensor that looks like this.

   I am looking for somebody that is close to flying to test my mechanical
   EFI.

   Paul Lamar

   I was going to use the stock ECU from Mazda, UNTIL I learned that the
   units are programmed to SHUT OFF ALL POWER TO THE SPARK if your engine
   'overheats'
   (that event's temperature seems to be undefined). I chose Tracy's unit
   for my turbo powered Long-Ez. John
   Andrich Oxnard Ca


   There must be away around that as Perry's engine has overheated several
   times.
   --
   Paul Lamar ...No rotor no motor.


   There are some funny rumors floating around out there. The only one I
   know about that Mazda says will turn off the engine is "overheated
   exhaust system". That is an ECU input that is not hooked up in aircraft
   use so I don't know how it turns the engine off.

   I know several stock Subaru ECUs have caused engine power loss and even
   crashes in aviation use because the owners didn't have something tricked
   out right. See a recent Contact Magazine article. Never heard of a
   similar issue with any Mazda aircraft installation.

   I have 680 hours now on the stock ECU and no issues except leaning.
   Always works just like in the car.

   Perry

   If anyone uses an ecu from Chrysler, Be Aware that if you trigger
   the right sensor that activates the limp home mode, you will have to
   fly home in 2nd Gear!

   Joel




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