Arduino ECU project

Hello there arduino community !

Im new here , so my name is Josip , im from Croatia and id like to hear opinions on a project im attempting from more experienced Arduino users .

Basically , i have a small Honda 4-stroke 197cc utility engine that i would like to convert to EFI .

Now from a technical standpoint i have all the tools needed to attach sensors and needed equipment to the engine for monitoring / ignition etc..

I will have 4 K-type thermocouples with MAX6675 modules to monitor oil , air intake , exhaust and cylinder temperature . And those as far as i understand hook up to the Mega328s digital inputs .

Rest which i have to figure out is how to and which pressure sensors to hook up to monitor MAP , fuel pressure and eventual oil pressure . ( if i get my hands on a turbo )

For ignition , i decided to use an NPN Hall effect magnetic sensor to serve as the engines source of ignition timing and also RPM gauge. Which id like to make tunable ( retarding and advancing the ignition ) .

Is this doable from the software side of things ? Or at least will the 328 be enough ? If yes , is there any possible improvements to this ?

It's doable but a real pain especially if you want to control both fuel and spark. I built a transmission controller for autos but things arent necessarily as time critical as engine control.

Bill

Hi,

https://www.youtube.com/watch?v=aT5fJBos-X4

Enjoy..

Tom... :slight_smile:

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Billdefish:
It's doable but a real pain especially if you want to control both fuel and spark. I built a transmission controller for autos but things arent necessarily as time critical as engine control.

Bill

Pain to program i guess ? Since the mechanical part for the most of it is simple.. just the pressure sensors part i dont understand yet.

TomGeorge:
Hi,

https://www.youtube.com/watch?v=aT5fJBos-X4

Enjoy..

Tom... :slight_smile:

I suppose its a video of a similar project ? I cant open the link , some dns error..

Hi,
Yes, google youtube arduino petrol engine

Tom... :slight_smile: