Mailing List flyrotary@lancaironline.net Message #44062
From: Al Gietzen <ALVentures@cox.net>
Subject: RE: [FlyRotary] Question on EM-2 autotune
Date: Tue, 7 Oct 2008 07:54:21 -0800
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

 

Bill;

 

Don’t know if you’ve had an answer to this question or not; but I have observed the same and recall discussing it with Tracy.  Unfortunately, I don’t recall for sure why it is, but it does not mean it is not tracking correctly.  I think it has to do with the calibration of the MAP readout (EM2)verses what the MAP sensor in the EC2 is actually using to determine the table position.  They don’t have to correspond, as long as the table entry it is using is set to the right value you’re in good shape.

 

Al G

 

My question is that line 1 and 3 show the same value, I.e. the same location in the MAP table, but lines 2 and 4 are showing different values for the manifold pressure. For example,

 

MAP location 9 showed 14.5 on the line 2, and 16.0 on line 4.

 

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