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Old 06-03-2013, 09:25 AM   #188 (permalink)
TheTestPilot
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Join Date: May 2011
Location: Southern Skies Australia
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I can certainly say ,this is working.
If you have a scope you may see the similiarity between ignition & injector pulses,other than the spark plug firing spike they look very similiar,although the ignition pulse is fixed & the injector pulse moves around according to the load.
I am on my 5th tank fill soon ,the last 4 tanks were within 3% of the pump reading , I have used the same pump every time ,this adaptor only totalises fuel used ,no other functions work properly on the MPguino.
As I say ,this is not the answer,I am trying to get people thinking outside the square on this problem.
Paddle wheel flow sensors are notoriously unreliable at "ecomodder flows" & then you have to change the code to count pulses, why not build a flow sensor to simulate an efi injector output waveform.

I have added a load sensor to another version of this "adaptor" just to see what it does ,but it will be a few weeks before I can install it.

I am still looking for suitable sensors to prototype a no moving part flow sensor(which needs no code changes), be it ultrasonics or pressure differential ,but as with R&D PROJECTS lots of ideas end up in the trash.

Does anybody want get on board with this?

Tp

Last edited by TheTestPilot; 06-03-2013 at 09:28 AM.. Reason: added (which needs no code changes)
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