Paul,

I have been thinking about your suggestion on using the MAF instead of
MAP as input for ECU. It just occur to me that may be a better ECU for
aviation use should have the following feature.

It seems that to be Aviation Friendly, it should support 50 degree
lean off peak, as well as self learning on amount of fuel to inject,
while not relying on oxygen sensor.

I think it can be done by first using the readings on MAF over the
entire range of RPM. This can tell us the volumetric efficiency of a
given engine setup. We then take advantage of a few known facts such
as engine capacity, etc. to get the proper fuel mixture.

Using Engine Temp, we can automatically tune to the correct air fuel mixture

To be aviation friendly, it should have a lean button. A switch enable
or disable leaning. Of course, the computer will take the time and
lean it over a period of say, one minute?

A manual knob to override the automatic tuning, in case there is need
for something different.

We should still take reading from the MAP sensor, as a backup, in case
the MAF sensor gone bad.

The program can be fairly simple, and will not need human intervention
in creating fuel maps.

Would that be possible and desirable?

Henry Nee

Sounds like  a full blown EFI. What prog language will you use?
If it is in asm I can help. I ain't doing C however :)
Use the Atmel chip as that seems to be very popular around the
world and I already have a development system.

Here is an OLED store in Hong Kong.
http://stores.ebay.com/WIDE-HK-Technology?_trksid=p4340.l2563

Bring some of these back with you. We can use something like this
for the instrument panel display.

When are you coming home?

Paul Lamar