[Diy_efi] TPS or MAP Sensor ?

[Derek]

> I have a question for you with regards to running an engine on a Throttle
> position sensor or a MAP Sensor for the engine load feed into the ECU.
> The current ECU i'm running is a GEMS EM20 and at the moment i'm using a TPS
> sensor to measure engine load and relay it's information back to the fuel
> and ignition maps in the ECU, now the engine is for use in  small aircraft
> and because the propeller can be changed from one pitch to another the
> engine load line moves within the ECU's maps and it's causing a bit of a
> problem in that i have to remap the engine for each propeller i use.
>
> Anything anyone ??

Yeah, sounds like a MAP sensor would be a much better source for load. Always
thought TPS was a lousy way, doesn't account for engine load at all.


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