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Scott etal:

<< Continental's injection system returns excess fuel  back to the fuel source. Some of the greater-than-actual usage may be due to  this and perhaps Continental publishes the rate at which it returns fuel.  >>

The Continental fuel system returns fuel/vapor from a chamber inside the pump itself, so it is never seen at the fuel flow transducer.  The TCM and Lyc. installations should be identical in that the transducer is located downstream from the pump, and before the fuel manifold (distributor,spider etc.).  Everyone should be certain to locate the transducer in a cool location, level with 2-3" of straight line in and out to reduce any turbulence.  Ensure the yellow/red/orange cap and its wires are orientated to the top, this keeps air from collecting in the paddlewheel chamber.  If you will look at the transducer yoiu will note that the two ports are staggered, with the outlet higher to keep air/vapor from collecting.

Mike DeHate

LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
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Please send your photos and drawings to marvkaye@olsusa.com.