MH44 EFI Update

David G

Well-known Member
I am consistently able to get my MH44 with the EFI conversion started and running now.

The two recent issues I was having are that the voltage was drooping to much during cranking which reset the computer and the computer just flat out will not put in enough fuel to cold start. I got around that by adding a prime button so I can manually fire the injector.

I really appreciate the effort that car makers put into tuning EFI now. I think I could build a test setup knowing what I know now. You would need to control the load, coolant and supply air temperature because all of these affect the settings. A carburetor just runs rich enough to cover all the bases.
 
Is your battery voltage actually dropping too far during cranking, or is most of the voltage drop across resistances in your starting cables and connections?
 
I have so much money in this tractor I could never sell it, and it was my dads. I was thinking about providing a kit for installation. It replaces the carburetor and distributor.

I have a lot of work left to do on fuel table changes.
 

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